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Finding the Third Proportional to 158,403.38 and 329,911.88

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Solution

The third proportional to 158,403.38 and 329,911.88 is: 687,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,403.38 : 329,911.88 = 329,911.88 : x
  2. Step 2: Convert to fraction form
    158,403.38/329,911.88 = 329,911.88/x
  3. Step 3: Cross multiply
    158,403.38x = 329,911.88 × 329,911.88
  4. Step 4: Simplify right side
    158,403.38x = 108,841,845,266.02
  5. Step 5: Solve for x
    x = 108,841,845,266.02/158,403.38
  6. Step 6: Final answer
    x = 687,118.22

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.