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Finding the Fourth Proportional to 489,207.40, 733,811.10 and 223,486.90

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Solution

The fourth proportional to 489,207.40, 733,811.10 and 223,486.90 is: 335,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,207.40 : 733,811.10 = 223,486.90 : x
  2. Step 2: Convert to fraction form
    489,207.40/733,811.10 = 223,486.90/x
  3. Step 3: Cross multiply
    489,207.40x = 733,811.10 × 223,486.90
  4. Step 4: Simplify right side
    489,207.40x = 163,997,167,924.59
  5. Step 5: Solve for x
    x = 163,997,167,924.59/489,207.40
  6. Step 6: Final answer
    x = 335,230.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.