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Finding the Fourth Proportional to 254,474.40, 381,711.60 and 235,228.80

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Solution

The fourth proportional to 254,474.40, 381,711.60 and 235,228.80 is: 352,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,474.40 : 381,711.60 = 235,228.80 : x
  2. Step 2: Convert to fraction form
    254,474.40/381,711.60 = 235,228.80/x
  3. Step 3: Cross multiply
    254,474.40x = 381,711.60 × 235,228.80
  4. Step 4: Simplify right side
    254,474.40x = 89,789,561,614.08
  5. Step 5: Solve for x
    x = 89,789,561,614.08/254,474.40
  6. Step 6: Final answer
    x = 352,843.20

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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.