Home / 486,167.40-729,251.10-170,656.20

Finding the Fourth Proportional to 486,167.40, 729,251.10 and 170,656.20

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Solution

The fourth proportional to 486,167.40, 729,251.10 and 170,656.20 is: 255,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,167.40 : 729,251.10 = 170,656.20 : x
  2. Step 2: Convert to fraction form
    486,167.40/729,251.10 = 170,656.20/x
  3. Step 3: Cross multiply
    486,167.40x = 729,251.10 × 170,656.20
  4. Step 4: Simplify right side
    486,167.40x = 124,451,221,571.82
  5. Step 5: Solve for x
    x = 124,451,221,571.82/486,167.40
  6. Step 6: Final answer
    x = 255,984.30

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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.