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Finding the Fourth Proportional to 231,616.50, 319,639.41 and 131,012.34

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Solution

The fourth proportional to 231,616.50, 319,639.41 and 131,012.34 is: 180,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,616.50 : 319,639.41 = 131,012.34 : x
  2. Step 2: Convert to fraction form
    231,616.50/319,639.41 = 131,012.34/x
  3. Step 3: Cross multiply
    231,616.50x = 319,639.41 × 131,012.34
  4. Step 4: Simplify right side
    231,616.50x = 41,876,707,060.32
  5. Step 5: Solve for x
    x = 41,876,707,060.32/231,616.50
  6. Step 6: Final answer
    x = 180,801.92

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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.