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Finding the Third Proportional to 457.38 and 651.75

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Solution

The third proportional to 457.38 and 651.75 is: 928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.38 : 651.75 = 651.75 : x
  2. Step 2: Convert to fraction form
    457.38/651.75 = 651.75/x
  3. Step 3: Cross multiply
    457.38x = 651.75 × 651.75
  4. Step 4: Simplify right side
    457.38x = 424,778.06
  5. Step 5: Solve for x
    x = 424,778.06/457.38
  6. Step 6: Final answer
    x = 928.73

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.