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Finding the Third Proportional to 142,329 and 306,651

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Solution

The third proportional to 142,329 and 306,651 is: 660,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,329 : 306,651 = 306,651 : x
  2. Step 2: Convert to fraction form
    142,329/306,651 = 306,651/x
  3. Step 3: Cross multiply
    142,329x = 306,651 × 306,651
  4. Step 4: Simplify right side
    142,329x = 94,034,835,801
  5. Step 5: Solve for x
    x = 94,034,835,801/142,329
  6. Step 6: Final answer
    x = 660,686.41

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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.