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Finding the Fourth Proportional to 327,239.92, 490,870.84 and 90,562.80

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Solution

The fourth proportional to 327,239.92, 490,870.84 and 90,562.80 is: 135,847.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,239.92 : 490,870.84 = 90,562.80 : x
  2. Step 2: Convert to fraction form
    327,239.92/490,870.84 = 90,562.80/x
  3. Step 3: Cross multiply
    327,239.92x = 490,870.84 × 90,562.80
  4. Step 4: Simplify right side
    327,239.92x = 44,454,637,708.75
  5. Step 5: Solve for x
    x = 44,454,637,708.75/327,239.92
  6. Step 6: Final answer
    x = 135,847.23

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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.