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Finding the Fourth Proportional to 243,437.22, 335,959.16 and 136,007.87

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Solution

The fourth proportional to 243,437.22, 335,959.16 and 136,007.87 is: 187,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,437.22 : 335,959.16 = 136,007.87 : x
  2. Step 2: Convert to fraction form
    243,437.22/335,959.16 = 136,007.87/x
  3. Step 3: Cross multiply
    243,437.22x = 335,959.16 × 136,007.87
  4. Step 4: Simplify right side
    243,437.22x = 45,693,087,398.75
  5. Step 5: Solve for x
    x = 45,693,087,398.75/243,437.22
  6. Step 6: Final answer
    x = 187,699.68

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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.