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Finding the Fourth Proportional to 223,579.44, 308,600.28 and 131,778.90

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Solution

The fourth proportional to 223,579.44, 308,600.28 and 131,778.90 is: 181,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,579.44 : 308,600.28 = 131,778.90 : x
  2. Step 2: Convert to fraction form
    223,579.44/308,600.28 = 131,778.90/x
  3. Step 3: Cross multiply
    223,579.44x = 308,600.28 × 131,778.90
  4. Step 4: Simplify right side
    223,579.44x = 40,667,005,438.09
  5. Step 5: Solve for x
    x = 40,667,005,438.09/223,579.44
  6. Step 6: Final answer
    x = 181,890.63

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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.