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Finding the Fourth Proportional to 243,141.38, 335,552.01 and 135,732.38

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Solution

The fourth proportional to 243,141.38, 335,552.01 and 135,732.38 is: 187,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,141.38 : 335,552.01 = 135,732.38 : x
  2. Step 2: Convert to fraction form
    243,141.38/335,552.01 = 135,732.38/x
  3. Step 3: Cross multiply
    243,141.38x = 335,552.01 × 135,732.38
  4. Step 4: Simplify right side
    243,141.38x = 45,545,272,931.08
  5. Step 5: Solve for x
    x = 45,545,272,931.08/243,141.38
  6. Step 6: Final answer
    x = 187,320.12

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1.5x scale

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.