Home / 442,856.20-664,284.30-256,232.20

Finding the Fourth Proportional to 442,856.20, 664,284.30 and 256,232.20

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Solution

The fourth proportional to 442,856.20, 664,284.30 and 256,232.20 is: 384,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,856.20 : 664,284.30 = 256,232.20 : x
  2. Step 2: Convert to fraction form
    442,856.20/664,284.30 = 256,232.20/x
  3. Step 3: Cross multiply
    442,856.20x = 664,284.30 × 256,232.20
  4. Step 4: Simplify right side
    442,856.20x = 170,211,027,614.46
  5. Step 5: Solve for x
    x = 170,211,027,614.46/442,856.20
  6. Step 6: Final answer
    x = 384,348.30

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Similar ratio
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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.