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Finding the Fourth Proportional to 274,179.60, 411,277.82 and 74,504.21

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Solution

The fourth proportional to 274,179.60, 411,277.82 and 74,504.21 is: 111,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,179.60 : 411,277.82 = 74,504.21 : x
  2. Step 2: Convert to fraction form
    274,179.60/411,277.82 = 74,504.21/x
  3. Step 3: Cross multiply
    274,179.60x = 411,277.82 × 74,504.21
  4. Step 4: Simplify right side
    274,179.60x = 30,641,926,640.71
  5. Step 5: Solve for x
    x = 30,641,926,640.71/274,179.60
  6. Step 6: Final answer
    x = 111,758.59

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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.