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Finding the Fourth Proportional to 274,480.70, 411,760.40 and 84,957.71

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Solution

The fourth proportional to 274,480.70, 411,760.40 and 84,957.71 is: 127,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,480.70 : 411,760.40 = 84,957.71 : x
  2. Step 2: Convert to fraction form
    274,480.70/411,760.40 = 84,957.71/x
  3. Step 3: Cross multiply
    274,480.70x = 411,760.40 × 84,957.71
  4. Step 4: Simplify right side
    274,480.70x = 34,982,221,202.08
  5. Step 5: Solve for x
    x = 34,982,221,202.08/274,480.70
  6. Step 6: Final answer
    x = 127,448.75

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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.