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Finding the Fourth Proportional to 283,893.40, 425,716.47 and 81,444.83

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Solution

The fourth proportional to 283,893.40, 425,716.47 and 81,444.83 is: 122,131.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,893.40 : 425,716.47 = 81,444.83 : x
  2. Step 2: Convert to fraction form
    283,893.40/425,716.47 = 81,444.83/x
  3. Step 3: Cross multiply
    283,893.40x = 425,716.47 × 81,444.83
  4. Step 4: Simplify right side
    283,893.40x = 34,672,406,591.64
  5. Step 5: Solve for x
    x = 34,672,406,591.64/283,893.40
  6. Step 6: Final answer
    x = 122,131.78

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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.