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Finding the Third Proportional to 730.75 and 959.50

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Solution

The third proportional to 730.75 and 959.50 is: 1,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.75 : 959.50 = 959.50 : x
  2. Step 2: Convert to fraction form
    730.75/959.50 = 959.50/x
  3. Step 3: Cross multiply
    730.75x = 959.50 × 959.50
  4. Step 4: Simplify right side
    730.75x = 920,640.25
  5. Step 5: Solve for x
    x = 920,640.25/730.75
  6. Step 6: Final answer
    x = 1,259.86

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.