Home / 288,067.28-398,020.04-207,335.12

Finding the Fourth Proportional to 288,067.28, 398,020.04 and 207,335.12

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Solution

The fourth proportional to 288,067.28, 398,020.04 and 207,335.12 is: 286,473.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,067.28 : 398,020.04 = 207,335.12 : x
  2. Step 2: Convert to fraction form
    288,067.28/398,020.04 = 207,335.12/x
  3. Step 3: Cross multiply
    288,067.28x = 398,020.04 × 207,335.12
  4. Step 4: Simplify right side
    288,067.28x = 82,523,532,755.80
  5. Step 5: Solve for x
    x = 82,523,532,755.80/288,067.28
  6. Step 6: Final answer
    x = 286,473.12

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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.