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Finding the Fourth Proportional to 488,553.40, 732,830.10 and 156,129.40

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Solution

The fourth proportional to 488,553.40, 732,830.10 and 156,129.40 is: 234,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,553.40 : 732,830.10 = 156,129.40 : x
  2. Step 2: Convert to fraction form
    488,553.40/732,830.10 = 156,129.40/x
  3. Step 3: Cross multiply
    488,553.40x = 732,830.10 × 156,129.40
  4. Step 4: Simplify right side
    488,553.40x = 114,416,323,814.94
  5. Step 5: Solve for x
    x = 114,416,323,814.94/488,553.40
  6. Step 6: Final answer
    x = 234,194.10

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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.