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Finding the Fourth Proportional to 243,253.52, 335,695.56 and 135,819.92

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Solution

The fourth proportional to 243,253.52, 335,695.56 and 135,819.92 is: 187,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,253.52 : 335,695.56 = 135,819.92 : x
  2. Step 2: Convert to fraction form
    243,253.52/335,695.56 = 135,819.92/x
  3. Step 3: Cross multiply
    243,253.52x = 335,695.56 × 135,819.92
  4. Step 4: Simplify right side
    243,253.52x = 45,594,144,103.56
  5. Step 5: Solve for x
    x = 45,594,144,103.56/243,253.52
  6. Step 6: Final answer
    x = 187,434.67

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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.