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Finding the Third Proportional to 920.25 and 1,414.50

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Solution

The third proportional to 920.25 and 1,414.50 is: 2,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    920.25 : 1,414.50 = 1,414.50 : x
  2. Step 2: Convert to fraction form
    920.25/1,414.50 = 1,414.50/x
  3. Step 3: Cross multiply
    920.25x = 1,414.50 × 1,414.50
  4. Step 4: Simplify right side
    920.25x = 2,000,810.25
  5. Step 5: Solve for x
    x = 2,000,810.25/920.25
  6. Step 6: Final answer
    x = 2,174.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.