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Finding the Fourth Proportional to 272,179.52, 375,617.31 and 149,681.20

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Solution

The fourth proportional to 272,179.52, 375,617.31 and 149,681.20 is: 206,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,179.52 : 375,617.31 = 149,681.20 : x
  2. Step 2: Convert to fraction form
    272,179.52/375,617.31 = 149,681.20/x
  3. Step 3: Cross multiply
    272,179.52x = 375,617.31 × 149,681.20
  4. Step 4: Simplify right side
    272,179.52x = 56,222,850,595.39
  5. Step 5: Solve for x
    x = 56,222,850,595.39/272,179.52
  6. Step 6: Final answer
    x = 206,565.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.