Home / 279,126.75-385,183.19-158,276.18

Finding the Fourth Proportional to 279,126.75, 385,183.19 and 158,276.18

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Solution

The fourth proportional to 279,126.75, 385,183.19 and 158,276.18 is: 218,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,126.75 : 385,183.19 = 158,276.18 : x
  2. Step 2: Convert to fraction form
    279,126.75/385,183.19 = 158,276.18/x
  3. Step 3: Cross multiply
    279,126.75x = 385,183.19 × 158,276.18
  4. Step 4: Simplify right side
    279,126.75x = 60,965,321,196.12
  5. Step 5: Solve for x
    x = 60,965,321,196.12/279,126.75
  6. Step 6: Final answer
    x = 218,414.47

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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.