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Finding the Third Proportional to 72,432 and 151,440

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Solution

The third proportional to 72,432 and 151,440 is: 316,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432 : 151,440 = 151,440 : x
  2. Step 2: Convert to fraction form
    72,432/151,440 = 151,440/x
  3. Step 3: Cross multiply
    72,432x = 151,440 × 151,440
  4. Step 4: Simplify right side
    72,432x = 22,934,073,600
  5. Step 5: Solve for x
    x = 22,934,073,600/72,432
  6. Step 6: Final answer
    x = 316,629.03

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.