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Finding the Third Proportional to 274,725.50 and 424,542.50

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Solution

The third proportional to 274,725.50 and 424,542.50 is: 656,059.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,725.50 : 424,542.50 = 424,542.50 : x
  2. Step 2: Convert to fraction form
    274,725.50/424,542.50 = 424,542.50/x
  3. Step 3: Cross multiply
    274,725.50x = 424,542.50 × 424,542.50
  4. Step 4: Simplify right side
    274,725.50x = 180,236,334,306.25
  5. Step 5: Solve for x
    x = 180,236,334,306.25/274,725.50
  6. Step 6: Final answer
    x = 656,059.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.