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Finding the Third Proportional to 72,306 and 149,224.50

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Solution

The third proportional to 72,306 and 149,224.50 is: 307,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306 : 149,224.50 = 149,224.50 : x
  2. Step 2: Convert to fraction form
    72,306/149,224.50 = 149,224.50/x
  3. Step 3: Cross multiply
    72,306x = 149,224.50 × 149,224.50
  4. Step 4: Simplify right side
    72,306x = 22,267,951,400.25
  5. Step 5: Solve for x
    x = 22,267,951,400.25/72,306
  6. Step 6: Final answer
    x = 307,968.24

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.