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Finding the Third Proportional to 553 and 731.50

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Solution

The third proportional to 553 and 731.50 is: 967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    553 : 731.50 = 731.50 : x
  2. Step 2: Convert to fraction form
    553/731.50 = 731.50/x
  3. Step 3: Cross multiply
    553x = 731.50 × 731.50
  4. Step 4: Simplify right side
    553x = 535,092.25
  5. Step 5: Solve for x
    x = 535,092.25/553
  6. Step 6: Final answer
    x = 967.62

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.