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Finding the Fourth Proportional to 269,321.58, 403,981.70 and 79,796.70

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Solution

The fourth proportional to 269,321.58, 403,981.70 and 79,796.70 is: 119,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,321.58 : 403,981.70 = 79,796.70 : x
  2. Step 2: Convert to fraction form
    269,321.58/403,981.70 = 79,796.70/x
  3. Step 3: Cross multiply
    269,321.58x = 403,981.70 × 79,796.70
  4. Step 4: Simplify right side
    269,321.58x = 32,236,406,121.41
  5. Step 5: Solve for x
    x = 32,236,406,121.41/269,321.58
  6. Step 6: Final answer
    x = 119,694.85

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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.