Home / 211,635.08-317,449.13-85,272.24

Finding the Fourth Proportional to 211,635.08, 317,449.13 and 85,272.24

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Solution

The fourth proportional to 211,635.08, 317,449.13 and 85,272.24 is: 127,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,635.08 : 317,449.13 = 85,272.24 : x
  2. Step 2: Convert to fraction form
    211,635.08/317,449.13 = 85,272.24/x
  3. Step 3: Cross multiply
    211,635.08x = 317,449.13 × 85,272.24
  4. Step 4: Simplify right side
    211,635.08x = 27,069,597,974.79
  5. Step 5: Solve for x
    x = 27,069,597,974.79/211,635.08
  6. Step 6: Final answer
    x = 127,906.95

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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.