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Finding the Fourth Proportional to 254,452.80, 381,679.20 and 88,240.80

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Solution

The fourth proportional to 254,452.80, 381,679.20 and 88,240.80 is: 132,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,452.80 : 381,679.20 = 88,240.80 : x
  2. Step 2: Convert to fraction form
    254,452.80/381,679.20 = 88,240.80/x
  3. Step 3: Cross multiply
    254,452.80x = 381,679.20 × 88,240.80
  4. Step 4: Simplify right side
    254,452.80x = 33,679,677,951.36
  5. Step 5: Solve for x
    x = 33,679,677,951.36/254,452.80
  6. Step 6: Final answer
    x = 132,361.20

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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.