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Finding the Third Proportional to 77,929.59 and 168,293.53

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Solution

The third proportional to 77,929.59 and 168,293.53 is: 363,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,929.59 : 168,293.53 = 168,293.53 : x
  2. Step 2: Convert to fraction form
    77,929.59/168,293.53 = 168,293.53/x
  3. Step 3: Cross multiply
    77,929.59x = 168,293.53 × 168,293.53
  4. Step 4: Simplify right side
    77,929.59x = 28,322,712,660.59
  5. Step 5: Solve for x
    x = 28,322,712,660.59/77,929.59
  6. Step 6: Final answer
    x = 363,439.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.