Home / 392,454.30-588,724.65-143,190.30

Finding the Fourth Proportional to 392,454.30, 588,724.65 and 143,190.30

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Solution

The fourth proportional to 392,454.30, 588,724.65 and 143,190.30 is: 214,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,454.30 : 588,724.65 = 143,190.30 : x
  2. Step 2: Convert to fraction form
    392,454.30/588,724.65 = 143,190.30/x
  3. Step 3: Cross multiply
    392,454.30x = 588,724.65 × 143,190.30
  4. Step 4: Simplify right side
    392,454.30x = 84,299,659,250.90
  5. Step 5: Solve for x
    x = 84,299,659,250.90/392,454.30
  6. Step 6: Final answer
    x = 214,801.21

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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.