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Finding the Third Proportional to 72,479 and 159,249.75

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Solution

The third proportional to 72,479 and 159,249.75 is: 349,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,479 : 159,249.75 = 159,249.75 : x
  2. Step 2: Convert to fraction form
    72,479/159,249.75 = 159,249.75/x
  3. Step 3: Cross multiply
    72,479x = 159,249.75 × 159,249.75
  4. Step 4: Simplify right side
    72,479x = 25,360,482,875.06
  5. Step 5: Solve for x
    x = 25,360,482,875.06/72,479
  6. Step 6: Final answer
    x = 349,901.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.