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Finding the Third Proportional to 655.59 and 959.34

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Solution

The third proportional to 655.59 and 959.34 is: 1,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.59 : 959.34 = 959.34 : x
  2. Step 2: Convert to fraction form
    655.59/959.34 = 959.34/x
  3. Step 3: Cross multiply
    655.59x = 959.34 × 959.34
  4. Step 4: Simplify right side
    655.59x = 920,340.43
  5. Step 5: Solve for x
    x = 920,340.43/655.59
  6. Step 6: Final answer
    x = 1,403.83

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.