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Finding the Fourth Proportional to 231,737.44, 319,780.56 and 131,116

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Solution

The fourth proportional to 231,737.44, 319,780.56 and 131,116 is: 180,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,737.44 : 319,780.56 = 131,116 : x
  2. Step 2: Convert to fraction form
    231,737.44/319,780.56 = 131,116/x
  3. Step 3: Cross multiply
    231,737.44x = 319,780.56 × 131,116
  4. Step 4: Simplify right side
    231,737.44x = 41,928,347,904.96
  5. Step 5: Solve for x
    x = 41,928,347,904.96/231,737.44
  6. Step 6: Final answer
    x = 180,930.40

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