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Finding the Fourth Proportional to 254,516.80, 381,826.40 and 88,270.40

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Solution

The fourth proportional to 254,516.80, 381,826.40 and 88,270.40 is: 132,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,516.80 : 381,826.40 = 88,270.40 : x
  2. Step 2: Convert to fraction form
    254,516.80/381,826.40 = 88,270.40/x
  3. Step 3: Cross multiply
    254,516.80x = 381,826.40 × 88,270.40
  4. Step 4: Simplify right side
    254,516.80x = 33,703,969,058.56
  5. Step 5: Solve for x
    x = 33,703,969,058.56/254,516.80
  6. Step 6: Final answer
    x = 132,423.36

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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.