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Finding the Fourth Proportional to 192,512.76, 287,359.09 and 169,787.40

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Solution

The fourth proportional to 192,512.76, 287,359.09 and 169,787.40 is: 253,437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,512.76 : 287,359.09 = 169,787.40 : x
  2. Step 2: Convert to fraction form
    192,512.76/287,359.09 = 169,787.40/x
  3. Step 3: Cross multiply
    192,512.76x = 287,359.09 × 169,787.40
  4. Step 4: Simplify right side
    192,512.76x = 48,789,952,757.47
  5. Step 5: Solve for x
    x = 48,789,952,757.47/192,512.76
  6. Step 6: Final answer
    x = 253,437.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.