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Finding the Fourth Proportional to 192,225.72, 288,153.38 and 129,063.12

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Solution

The fourth proportional to 192,225.72, 288,153.38 and 129,063.12 is: 193,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,225.72 : 288,153.38 = 129,063.12 : x
  2. Step 2: Convert to fraction form
    192,225.72/288,153.38 = 129,063.12/x
  3. Step 3: Cross multiply
    192,225.72x = 288,153.38 × 129,063.12
  4. Step 4: Simplify right side
    192,225.72x = 37,189,974,261.35
  5. Step 5: Solve for x
    x = 37,189,974,261.35/192,225.72
  6. Step 6: Final answer
    x = 193,470.33

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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.