Home / 486,423.40-729,635.10-131,492.20

Finding the Fourth Proportional to 486,423.40, 729,635.10 and 131,492.20

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Solution

The fourth proportional to 486,423.40, 729,635.10 and 131,492.20 is: 197,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,423.40 : 729,635.10 = 131,492.20 : x
  2. Step 2: Convert to fraction form
    486,423.40/729,635.10 = 131,492.20/x
  3. Step 3: Cross multiply
    486,423.40x = 729,635.10 × 131,492.20
  4. Step 4: Simplify right side
    486,423.40x = 95,941,324,496.22
  5. Step 5: Solve for x
    x = 95,941,324,496.22/486,423.40
  6. Step 6: Final answer
    x = 197,238.30

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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.