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Finding the Third Proportional to 431.58 and 610.24

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Solution

The third proportional to 431.58 and 610.24 is: 862.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.58 : 610.24 = 610.24 : x
  2. Step 2: Convert to fraction form
    431.58/610.24 = 610.24/x
  3. Step 3: Cross multiply
    431.58x = 610.24 × 610.24
  4. Step 4: Simplify right side
    431.58x = 372,395.53
  5. Step 5: Solve for x
    x = 372,395.53/431.58
  6. Step 6: Final answer
    x = 862.87

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.