Home / 259,722.20-389,583.30-141,624.20

Finding the Fourth Proportional to 259,722.20, 389,583.30 and 141,624.20

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Solution

The fourth proportional to 259,722.20, 389,583.30 and 141,624.20 is: 212,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,722.20 : 389,583.30 = 141,624.20 : x
  2. Step 2: Convert to fraction form
    259,722.20/389,583.30 = 141,624.20/x
  3. Step 3: Cross multiply
    259,722.20x = 389,583.30 × 141,624.20
  4. Step 4: Simplify right side
    259,722.20x = 55,174,423,195.86
  5. Step 5: Solve for x
    x = 55,174,423,195.86/259,722.20
  6. Step 6: Final answer
    x = 212,436.30

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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.