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Finding the Fourth Proportional to 272,295.46, 408,462.72 and 72,614.80

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Solution

The fourth proportional to 272,295.46, 408,462.72 and 72,614.80 is: 108,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,295.46 : 408,462.72 = 72,614.80 : x
  2. Step 2: Convert to fraction form
    272,295.46/408,462.72 = 72,614.80/x
  3. Step 3: Cross multiply
    272,295.46x = 408,462.72 × 72,614.80
  4. Step 4: Simplify right side
    272,295.46x = 29,660,438,720.26
  5. Step 5: Solve for x
    x = 29,660,438,720.26/272,295.46
  6. Step 6: Final answer
    x = 108,927.41

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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.