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Finding the Fourth Proportional to 239,383.96, 330,349.78 and 131,955.78

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Solution

The fourth proportional to 239,383.96, 330,349.78 and 131,955.78 is: 182,098.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,383.96 : 330,349.78 = 131,955.78 : x
  2. Step 2: Convert to fraction form
    239,383.96/330,349.78 = 131,955.78/x
  3. Step 3: Cross multiply
    239,383.96x = 330,349.78 × 131,955.78
  4. Step 4: Simplify right side
    239,383.96x = 43,591,562,892.73
  5. Step 5: Solve for x
    x = 43,591,562,892.73/239,383.96
  6. Step 6: Final answer
    x = 182,098.93

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1.5x scale

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.