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Finding the Third Proportional to 71,330.63 and 168,688.97

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Solution

The third proportional to 71,330.63 and 168,688.97 is: 398,930.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,330.63 : 168,688.97 = 168,688.97 : x
  2. Step 2: Convert to fraction form
    71,330.63/168,688.97 = 168,688.97/x
  3. Step 3: Cross multiply
    71,330.63x = 168,688.97 × 168,688.97
  4. Step 4: Simplify right side
    71,330.63x = 28,455,968,177.94
  5. Step 5: Solve for x
    x = 28,455,968,177.94/71,330.63
  6. Step 6: Final answer
    x = 398,930.59

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.