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Finding the Fourth Proportional to 172,591.38, 258,949.41 and 60,288.18

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Solution

The fourth proportional to 172,591.38, 258,949.41 and 60,288.18 is: 90,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,591.38 : 258,949.41 = 60,288.18 : x
  2. Step 2: Convert to fraction form
    172,591.38/258,949.41 = 60,288.18/x
  3. Step 3: Cross multiply
    172,591.38x = 258,949.41 × 60,288.18
  4. Step 4: Simplify right side
    172,591.38x = 15,611,588,640.97
  5. Step 5: Solve for x
    x = 15,611,588,640.97/172,591.38
  6. Step 6: Final answer
    x = 90,454.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.