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Finding the Fourth Proportional to 488,018.40, 732,147.60 and 168,175.20

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Solution

The fourth proportional to 488,018.40, 732,147.60 and 168,175.20 is: 252,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,018.40 : 732,147.60 = 168,175.20 : x
  2. Step 2: Convert to fraction form
    488,018.40/732,147.60 = 168,175.20/x
  3. Step 3: Cross multiply
    488,018.40x = 732,147.60 × 168,175.20
  4. Step 4: Simplify right side
    488,018.40x = 123,129,069,059.52
  5. Step 5: Solve for x
    x = 123,129,069,059.52/488,018.40
  6. Step 6: Final answer
    x = 252,304.15

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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.