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Finding the Fourth Proportional to 360,625.40, 497,656.90 and 199,480.32

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Solution

The fourth proportional to 360,625.40, 497,656.90 and 199,480.32 is: 275,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,625.40 : 497,656.90 = 199,480.32 : x
  2. Step 2: Convert to fraction form
    360,625.40/497,656.90 = 199,480.32/x
  3. Step 3: Cross multiply
    360,625.40x = 497,656.90 × 199,480.32
  4. Step 4: Simplify right side
    360,625.40x = 99,272,757,662.21
  5. Step 5: Solve for x
    x = 99,272,757,662.21/360,625.40
  6. Step 6: Final answer
    x = 275,279.44

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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.