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Finding the Third Proportional to 339.38 and 730.88

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Solution

The third proportional to 339.38 and 730.88 is: 1,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.38 : 730.88 = 730.88 : x
  2. Step 2: Convert to fraction form
    339.38/730.88 = 730.88/x
  3. Step 3: Cross multiply
    339.38x = 730.88 × 730.88
  4. Step 4: Simplify right side
    339.38x = 534,178.27
  5. Step 5: Solve for x
    x = 534,178.27/339.38
  6. Step 6: Final answer
    x = 1,574.01

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.