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Finding the Third Proportional to 616 and 914.50

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Solution

The third proportional to 616 and 914.50 is: 1,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    616 : 914.50 = 914.50 : x
  2. Step 2: Convert to fraction form
    616/914.50 = 914.50/x
  3. Step 3: Cross multiply
    616x = 914.50 × 914.50
  4. Step 4: Simplify right side
    616x = 836,310.25
  5. Step 5: Solve for x
    x = 836,310.25/616
  6. Step 6: Final answer
    x = 1,357.65

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.