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Finding the Fourth Proportional to 181,552.40, 272,620.20 and 137,229.20

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Solution

The fourth proportional to 181,552.40, 272,620.20 and 137,229.20 is: 206,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,552.40 : 272,620.20 = 137,229.20 : x
  2. Step 2: Convert to fraction form
    181,552.40/272,620.20 = 137,229.20/x
  3. Step 3: Cross multiply
    181,552.40x = 272,620.20 × 137,229.20
  4. Step 4: Simplify right side
    181,552.40x = 37,411,451,949.84
  5. Step 5: Solve for x
    x = 37,411,451,949.84/181,552.40
  6. Step 6: Final answer
    x = 206,064.21

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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.