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Finding the Third Proportional to 72,997.88 and 157,386.38

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Solution

The third proportional to 72,997.88 and 157,386.38 is: 339,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,997.88 : 157,386.38 = 157,386.38 : x
  2. Step 2: Convert to fraction form
    72,997.88/157,386.38 = 157,386.38/x
  3. Step 3: Cross multiply
    72,997.88x = 157,386.38 × 157,386.38
  4. Step 4: Simplify right side
    72,997.88x = 24,770,471,035.64
  5. Step 5: Solve for x
    x = 24,770,471,035.64/72,997.88
  6. Step 6: Final answer
    x = 339,331.40

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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.