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Finding the Fourth Proportional to 283,677.40, 425,516.10 and 254,128.60

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Solution

The fourth proportional to 283,677.40, 425,516.10 and 254,128.60 is: 381,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,677.40 : 425,516.10 = 254,128.60 : x
  2. Step 2: Convert to fraction form
    283,677.40/425,516.10 = 254,128.60/x
  3. Step 3: Cross multiply
    283,677.40x = 425,516.10 × 254,128.60
  4. Step 4: Simplify right side
    283,677.40x = 108,135,810,770.46
  5. Step 5: Solve for x
    x = 108,135,810,770.46/283,677.40
  6. Step 6: Final answer
    x = 381,192.90

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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.