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Finding the Fourth Proportional to 243,248.74, 335,704.01 and 135,839.53

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Solution

The fourth proportional to 243,248.74, 335,704.01 and 135,839.53 is: 187,470.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,248.74 : 335,704.01 = 135,839.53 : x
  2. Step 2: Convert to fraction form
    243,248.74/335,704.01 = 135,839.53/x
  3. Step 3: Cross multiply
    243,248.74x = 335,704.01 × 135,839.53
  4. Step 4: Simplify right side
    243,248.74x = 45,601,873,259.00
  5. Step 5: Solve for x
    x = 45,601,873,259.00/243,248.74
  6. Step 6: Final answer
    x = 187,470.13

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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.