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Finding the Fourth Proportional to 192,119.40, 288,224.46 and 65,761.20

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Solution

The fourth proportional to 192,119.40, 288,224.46 and 65,761.20 is: 98,657.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,119.40 : 288,224.46 = 65,761.20 : x
  2. Step 2: Convert to fraction form
    192,119.40/288,224.46 = 65,761.20/x
  3. Step 3: Cross multiply
    192,119.40x = 288,224.46 × 65,761.20
  4. Step 4: Simplify right side
    192,119.40x = 18,953,986,358.95
  5. Step 5: Solve for x
    x = 18,953,986,358.95/192,119.40
  6. Step 6: Final answer
    x = 98,657.33

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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.