Home / 288,004.30-431,990.27-88,324.13

Finding the Fourth Proportional to 288,004.30, 431,990.27 and 88,324.13

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Solution

The fourth proportional to 288,004.30, 431,990.27 and 88,324.13 is: 132,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,004.30 : 431,990.27 = 88,324.13 : x
  2. Step 2: Convert to fraction form
    288,004.30/431,990.27 = 88,324.13/x
  3. Step 3: Cross multiply
    288,004.30x = 431,990.27 × 88,324.13
  4. Step 4: Simplify right side
    288,004.30x = 38,155,164,766.22
  5. Step 5: Solve for x
    x = 38,155,164,766.22/288,004.30
  6. Step 6: Final answer
    x = 132,481.23

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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.