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Finding the Fourth Proportional to 275,452.49, 380,143.26 and 152,951.19

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Solution

The fourth proportional to 275,452.49, 380,143.26 and 152,951.19 is: 211,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,452.49 : 380,143.26 = 152,951.19 : x
  2. Step 2: Convert to fraction form
    275,452.49/380,143.26 = 152,951.19/x
  3. Step 3: Cross multiply
    275,452.49x = 380,143.26 × 152,951.19
  4. Step 4: Simplify right side
    275,452.49x = 58,143,366,414.66
  5. Step 5: Solve for x
    x = 58,143,366,414.66/275,452.49
  6. Step 6: Final answer
    x = 211,083.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.