Home / 256,910.70-385,366.05-182,115.30

Finding the Fourth Proportional to 256,910.70, 385,366.05 and 182,115.30

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Solution

The fourth proportional to 256,910.70, 385,366.05 and 182,115.30 is: 273,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,910.70 : 385,366.05 = 182,115.30 : x
  2. Step 2: Convert to fraction form
    256,910.70/385,366.05 = 182,115.30/x
  3. Step 3: Cross multiply
    256,910.70x = 385,366.05 × 182,115.30
  4. Step 4: Simplify right side
    256,910.70x = 70,181,053,805.57
  5. Step 5: Solve for x
    x = 70,181,053,805.57/256,910.70
  6. Step 6: Final answer
    x = 273,172.95

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1.5x scale

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.