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Finding the Fourth Proportional to 239,339.85, 359,052.35 and 79,425.36

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Solution

The fourth proportional to 239,339.85, 359,052.35 and 79,425.36 is: 119,152.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,339.85 : 359,052.35 = 79,425.36 : x
  2. Step 2: Convert to fraction form
    239,339.85/359,052.35 = 79,425.36/x
  3. Step 3: Cross multiply
    239,339.85x = 359,052.35 × 79,425.36
  4. Step 4: Simplify right side
    239,339.85x = 28,517,861,760.47
  5. Step 5: Solve for x
    x = 28,517,861,760.47/239,339.85
  6. Step 6: Final answer
    x = 119,152.17

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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.