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Finding the Fourth Proportional to 177,894.80, 266,194.20 and 131,238.80

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Solution

The fourth proportional to 177,894.80, 266,194.20 and 131,238.80 is: 196,380.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,894.80 : 266,194.20 = 131,238.80 : x
  2. Step 2: Convert to fraction form
    177,894.80/266,194.20 = 131,238.80/x
  3. Step 3: Cross multiply
    177,894.80x = 266,194.20 × 131,238.80
  4. Step 4: Simplify right side
    177,894.80x = 34,935,007,374.96
  5. Step 5: Solve for x
    x = 34,935,007,374.96/177,894.80
  6. Step 6: Final answer
    x = 196,380.15

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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.