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Finding the Fourth Proportional to 192,813.32, 288,843.33 and 132,831.20

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Solution

The fourth proportional to 192,813.32, 288,843.33 and 132,831.20 is: 198,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,813.32 : 288,843.33 = 132,831.20 : x
  2. Step 2: Convert to fraction form
    192,813.32/288,843.33 = 132,831.20/x
  3. Step 3: Cross multiply
    192,813.32x = 288,843.33 × 132,831.20
  4. Step 4: Simplify right side
    192,813.32x = 38,367,406,135.90
  5. Step 5: Solve for x
    x = 38,367,406,135.90/192,813.32
  6. Step 6: Final answer
    x = 198,987.32

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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.