Home / 269,140.17-403,789.20-79,605.53

Finding the Fourth Proportional to 269,140.17, 403,789.20 and 79,605.53

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Solution

The fourth proportional to 269,140.17, 403,789.20 and 79,605.53 is: 119,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,140.17 : 403,789.20 = 79,605.53 : x
  2. Step 2: Convert to fraction form
    269,140.17/403,789.20 = 79,605.53/x
  3. Step 3: Cross multiply
    269,140.17x = 403,789.20 × 79,605.53
  4. Step 4: Simplify right side
    269,140.17x = 32,143,854,084.74
  5. Step 5: Solve for x
    x = 32,143,854,084.74/269,140.17
  6. Step 6: Final answer
    x = 119,431.65

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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.