Home / 211,476.20-291,761.46-120,766.76

Finding the Fourth Proportional to 211,476.20, 291,761.46 and 120,766.76

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Solution

The fourth proportional to 211,476.20, 291,761.46 and 120,766.76 is: 166,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,476.20 : 291,761.46 = 120,766.76 : x
  2. Step 2: Convert to fraction form
    211,476.20/291,761.46 = 120,766.76/x
  3. Step 3: Cross multiply
    211,476.20x = 291,761.46 × 120,766.76
  4. Step 4: Simplify right side
    211,476.20x = 35,235,086,217.07
  5. Step 5: Solve for x
    x = 35,235,086,217.07/211,476.20
  6. Step 6: Final answer
    x = 166,614.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.