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Finding the Third Proportional to 72,471.50 and 155,660.50

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Solution

The third proportional to 72,471.50 and 155,660.50 is: 334,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,471.50 : 155,660.50 = 155,660.50 : x
  2. Step 2: Convert to fraction form
    72,471.50/155,660.50 = 155,660.50/x
  3. Step 3: Cross multiply
    72,471.50x = 155,660.50 × 155,660.50
  4. Step 4: Simplify right side
    72,471.50x = 24,230,191,260.25
  5. Step 5: Solve for x
    x = 24,230,191,260.25/72,471.50
  6. Step 6: Final answer
    x = 334,340.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.