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Finding the Fourth Proportional to 275,377.52, 380,020.11 and 154,519.35

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Solution

The fourth proportional to 275,377.52, 380,020.11 and 154,519.35 is: 213,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,377.52 : 380,020.11 = 154,519.35 : x
  2. Step 2: Convert to fraction form
    275,377.52/380,020.11 = 154,519.35/x
  3. Step 3: Cross multiply
    275,377.52x = 380,020.11 × 154,519.35
  4. Step 4: Simplify right side
    275,377.52x = 58,720,458,379.61
  5. Step 5: Solve for x
    x = 58,720,458,379.61/275,377.52
  6. Step 6: Final answer
    x = 213,236.21

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1.5x scale

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.