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Finding the Fourth Proportional to 239,834.84, 359,689.61 and 71,309.79

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Solution

The fourth proportional to 239,834.84, 359,689.61 and 71,309.79 is: 106,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,834.84 : 359,689.61 = 71,309.79 : x
  2. Step 2: Convert to fraction form
    239,834.84/359,689.61 = 71,309.79/x
  3. Step 3: Cross multiply
    239,834.84x = 359,689.61 × 71,309.79
  4. Step 4: Simplify right side
    239,834.84x = 25,649,390,732.56
  5. Step 5: Solve for x
    x = 25,649,390,732.56/239,834.84
  6. Step 6: Final answer
    x = 106,946.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.