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Finding the Fourth Proportional to 253,339.39, 349,470.10 and 162,709.15

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Solution

The fourth proportional to 253,339.39, 349,470.10 and 162,709.15 is: 224,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,339.39 : 349,470.10 = 162,709.15 : x
  2. Step 2: Convert to fraction form
    253,339.39/349,470.10 = 162,709.15/x
  3. Step 3: Cross multiply
    253,339.39x = 349,470.10 × 162,709.15
  4. Step 4: Simplify right side
    253,339.39x = 56,861,982,921.42
  5. Step 5: Solve for x
    x = 56,861,982,921.42/253,339.39
  6. Step 6: Final answer
    x = 224,449.83

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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.