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Finding the Third Proportional to 574 and 864.50

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Solution

The third proportional to 574 and 864.50 is: 1,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    574 : 864.50 = 864.50 : x
  2. Step 2: Convert to fraction form
    574/864.50 = 864.50/x
  3. Step 3: Cross multiply
    574x = 864.50 × 864.50
  4. Step 4: Simplify right side
    574x = 747,360.25
  5. Step 5: Solve for x
    x = 747,360.25/574
  6. Step 6: Final answer
    x = 1,302.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.