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Finding the Fourth Proportional to 283,478.20, 425,217.30 and 254,447.80

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Solution

The fourth proportional to 283,478.20, 425,217.30 and 254,447.80 is: 381,671.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,478.20 : 425,217.30 = 254,447.80 : x
  2. Step 2: Convert to fraction form
    283,478.20/425,217.30 = 254,447.80/x
  3. Step 3: Cross multiply
    283,478.20x = 425,217.30 × 254,447.80
  4. Step 4: Simplify right side
    283,478.20x = 108,195,606,506.94
  5. Step 5: Solve for x
    x = 108,195,606,506.94/283,478.20
  6. Step 6: Final answer
    x = 381,671.70

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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.