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Finding the Fourth Proportional to 247,725.52, 371,474.88 and 79,213.12

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Solution

The fourth proportional to 247,725.52, 371,474.88 and 79,213.12 is: 118,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,725.52 : 371,474.88 = 79,213.12 : x
  2. Step 2: Convert to fraction form
    247,725.52/371,474.88 = 79,213.12/x
  3. Step 3: Cross multiply
    247,725.52x = 371,474.88 × 79,213.12
  4. Step 4: Simplify right side
    247,725.52x = 29,425,684,246.43
  5. Step 5: Solve for x
    x = 29,425,684,246.43/247,725.52
  6. Step 6: Final answer
    x = 118,783.42

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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.