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Finding the Fourth Proportional to 228,359.65, 315,059.50 and 132,787.75

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Solution

The fourth proportional to 228,359.65, 315,059.50 and 132,787.75 is: 183,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,359.65 : 315,059.50 = 132,787.75 : x
  2. Step 2: Convert to fraction form
    228,359.65/315,059.50 = 132,787.75/x
  3. Step 3: Cross multiply
    228,359.65x = 315,059.50 × 132,787.75
  4. Step 4: Simplify right side
    228,359.65x = 41,836,042,121.13
  5. Step 5: Solve for x
    x = 41,836,042,121.13/228,359.65
  6. Step 6: Final answer
    x = 183,202.43

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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.