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Finding the Fourth Proportional to 226,608.68, 312,759.12 and 131,168

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Solution

The fourth proportional to 226,608.68, 312,759.12 and 131,168 is: 181,034.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,608.68 : 312,759.12 = 131,168 : x
  2. Step 2: Convert to fraction form
    226,608.68/312,759.12 = 131,168/x
  3. Step 3: Cross multiply
    226,608.68x = 312,759.12 × 131,168
  4. Step 4: Simplify right side
    226,608.68x = 41,023,988,252.16
  5. Step 5: Solve for x
    x = 41,023,988,252.16/226,608.68
  6. Step 6: Final answer
    x = 181,034.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.