Home / 437,600.16-656,400.24-138,081.60

Finding the Fourth Proportional to 437,600.16, 656,400.24 and 138,081.60

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Solution

The fourth proportional to 437,600.16, 656,400.24 and 138,081.60 is: 207,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,600.16 : 656,400.24 = 138,081.60 : x
  2. Step 2: Convert to fraction form
    437,600.16/656,400.24 = 138,081.60/x
  3. Step 3: Cross multiply
    437,600.16x = 656,400.24 × 138,081.60
  4. Step 4: Simplify right side
    437,600.16x = 90,636,795,379.58
  5. Step 5: Solve for x
    x = 90,636,795,379.58/437,600.16
  6. Step 6: Final answer
    x = 207,122.40

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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.