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Finding the Fourth Proportional to 243,082.48, 335,470.62 and 135,673.48

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Solution

The fourth proportional to 243,082.48, 335,470.62 and 135,673.48 is: 187,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,082.48 : 335,470.62 = 135,673.48 : x
  2. Step 2: Convert to fraction form
    243,082.48/335,470.62 = 135,673.48/x
  3. Step 3: Cross multiply
    243,082.48x = 335,470.62 × 135,673.48
  4. Step 4: Simplify right side
    243,082.48x = 45,514,466,453.16
  5. Step 5: Solve for x
    x = 45,514,466,453.16/243,082.48
  6. Step 6: Final answer
    x = 187,238.78

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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.