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Finding the Fourth Proportional to 275,753.23, 380,524.84 and 154,899.61

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Solution

The fourth proportional to 275,753.23, 380,524.84 and 154,899.61 is: 213,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,753.23 : 380,524.84 = 154,899.61 : x
  2. Step 2: Convert to fraction form
    275,753.23/380,524.84 = 154,899.61/x
  3. Step 3: Cross multiply
    275,753.23x = 380,524.84 × 154,899.61
  4. Step 4: Simplify right side
    275,753.23x = 58,943,149,311.31
  5. Step 5: Solve for x
    x = 58,943,149,311.31/275,753.23
  6. Step 6: Final answer
    x = 213,753.25

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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.