Home / 360,396.12-497,308.56-199,225.20

Finding the Fourth Proportional to 360,396.12, 497,308.56 and 199,225.20

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Solution

The fourth proportional to 360,396.12, 497,308.56 and 199,225.20 is: 274,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,396.12 : 497,308.56 = 199,225.20 : x
  2. Step 2: Convert to fraction form
    360,396.12/497,308.56 = 199,225.20/x
  3. Step 3: Cross multiply
    360,396.12x = 497,308.56 × 199,225.20
  4. Step 4: Simplify right side
    360,396.12x = 99,076,397,327.71
  5. Step 5: Solve for x
    x = 99,076,397,327.71/360,396.12
  6. Step 6: Final answer
    x = 274,909.72

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.