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Finding the Third Proportional to 359.28 and 767.29

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Solution

The third proportional to 359.28 and 767.29 is: 1,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.28 : 767.29 = 767.29 : x
  2. Step 2: Convert to fraction form
    359.28/767.29 = 767.29/x
  3. Step 3: Cross multiply
    359.28x = 767.29 × 767.29
  4. Step 4: Simplify right side
    359.28x = 588,726.51
  5. Step 5: Solve for x
    x = 588,726.51/359.28
  6. Step 6: Final answer
    x = 1,638.63

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.