Home / 381,867.12-526,918.02-220,691.04

Finding the Fourth Proportional to 381,867.12, 526,918.02 and 220,691.04

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Solution

The fourth proportional to 381,867.12, 526,918.02 and 220,691.04 is: 304,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,867.12 : 526,918.02 = 220,691.04 : x
  2. Step 2: Convert to fraction form
    381,867.12/526,918.02 = 220,691.04/x
  3. Step 3: Cross multiply
    381,867.12x = 526,918.02 × 220,691.04
  4. Step 4: Simplify right side
    381,867.12x = 116,286,085,828.54
  5. Step 5: Solve for x
    x = 116,286,085,828.54/381,867.12
  6. Step 6: Final answer
    x = 304,519.77

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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.