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Finding the Fourth Proportional to 273,042.40, 409,474.46 and 90,624.20

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Solution

The fourth proportional to 273,042.40, 409,474.46 and 90,624.20 is: 135,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,042.40 : 409,474.46 = 90,624.20 : x
  2. Step 2: Convert to fraction form
    273,042.40/409,474.46 = 90,624.20/x
  3. Step 3: Cross multiply
    273,042.40x = 409,474.46 × 90,624.20
  4. Step 4: Simplify right side
    273,042.40x = 37,108,295,357.93
  5. Step 5: Solve for x
    x = 37,108,295,357.93/273,042.40
  6. Step 6: Final answer
    x = 135,906.71

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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.