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Finding the Fourth Proportional to 222,131.52, 332,995.68 and 115,390.72

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Solution

The fourth proportional to 222,131.52, 332,995.68 and 115,390.72 is: 172,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,131.52 : 332,995.68 = 115,390.72 : x
  2. Step 2: Convert to fraction form
    222,131.52/332,995.68 = 115,390.72/x
  3. Step 3: Cross multiply
    222,131.52x = 332,995.68 × 115,390.72
  4. Step 4: Simplify right side
    222,131.52x = 38,424,611,272.09
  5. Step 5: Solve for x
    x = 38,424,611,272.09/222,131.52
  6. Step 6: Final answer
    x = 172,981.35

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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.