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Finding the Fourth Proportional to 488,569.90, 732,854.85 and 133,619.80

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Solution

The fourth proportional to 488,569.90, 732,854.85 and 133,619.80 is: 200,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,569.90 : 732,854.85 = 133,619.80 : x
  2. Step 2: Convert to fraction form
    488,569.90/732,854.85 = 133,619.80/x
  3. Step 3: Cross multiply
    488,569.90x = 732,854.85 × 133,619.80
  4. Step 4: Simplify right side
    488,569.90x = 97,923,918,486.03
  5. Step 5: Solve for x
    x = 97,923,918,486.03/488,569.90
  6. Step 6: Final answer
    x = 200,429.70

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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.