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Finding the Fourth Proportional to 243,097.86, 335,508.87 and 135,674.82

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Solution

The fourth proportional to 243,097.86, 335,508.87 and 135,674.82 is: 187,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,097.86 : 335,508.87 = 135,674.82 : x
  2. Step 2: Convert to fraction form
    243,097.86/335,508.87 = 135,674.82/x
  3. Step 3: Cross multiply
    243,097.86x = 335,508.87 × 135,674.82
  4. Step 4: Simplify right side
    243,097.86x = 45,520,103,825.55
  5. Step 5: Solve for x
    x = 45,520,103,825.55/243,097.86
  6. Step 6: Final answer
    x = 187,250.12

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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.