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Finding the Fourth Proportional to 270,079.13, 372,724.15 and 149,217.83

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Solution

The fourth proportional to 270,079.13, 372,724.15 and 149,217.83 is: 205,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,079.13 : 372,724.15 = 149,217.83 : x
  2. Step 2: Convert to fraction form
    270,079.13/372,724.15 = 149,217.83/x
  3. Step 3: Cross multiply
    270,079.13x = 372,724.15 × 149,217.83
  4. Step 4: Simplify right side
    270,079.13x = 55,617,086,987.97
  5. Step 5: Solve for x
    x = 55,617,086,987.97/270,079.13
  6. Step 6: Final answer
    x = 205,928.86

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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.