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Finding the Fourth Proportional to 239,380.96, 330,345.64 and 131,952.78

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Solution

The fourth proportional to 239,380.96, 330,345.64 and 131,952.78 is: 182,094.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,380.96 : 330,345.64 = 131,952.78 : x
  2. Step 2: Convert to fraction form
    239,380.96/330,345.64 = 131,952.78/x
  3. Step 3: Cross multiply
    239,380.96x = 330,345.64 × 131,952.78
  4. Step 4: Simplify right side
    239,380.96x = 43,590,025,558.88
  5. Step 5: Solve for x
    x = 43,590,025,558.88/239,380.96
  6. Step 6: Final answer
    x = 182,094.79

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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.