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Finding the Fourth Proportional to 192,279.42, 288,466.92 and 79,925.94

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Solution

The fourth proportional to 192,279.42, 288,466.92 and 79,925.94 is: 119,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,279.42 : 288,466.92 = 79,925.94 : x
  2. Step 2: Convert to fraction form
    192,279.42/288,466.92 = 79,925.94/x
  3. Step 3: Cross multiply
    192,279.42x = 288,466.92 × 79,925.94
  4. Step 4: Simplify right side
    192,279.42x = 23,055,989,739.90
  5. Step 5: Solve for x
    x = 23,055,989,739.90/192,279.42
  6. Step 6: Final answer
    x = 119,908.78

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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.