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Finding the Third Proportional to 144,755 and 318,959

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Solution

The third proportional to 144,755 and 318,959 is: 702,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,755 : 318,959 = 318,959 : x
  2. Step 2: Convert to fraction form
    144,755/318,959 = 318,959/x
  3. Step 3: Cross multiply
    144,755x = 318,959 × 318,959
  4. Step 4: Simplify right side
    144,755x = 101,734,843,681
  5. Step 5: Solve for x
    x = 101,734,843,681/144,755
  6. Step 6: Final answer
    x = 702,807.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.