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Finding the Fourth Proportional to 268,893.54, 371,073.01 and 149,689.70

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Solution

The fourth proportional to 268,893.54, 371,073.01 and 149,689.70 is: 206,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,893.54 : 371,073.01 = 149,689.70 : x
  2. Step 2: Convert to fraction form
    268,893.54/371,073.01 = 149,689.70/x
  3. Step 3: Cross multiply
    268,893.54x = 371,073.01 × 149,689.70
  4. Step 4: Simplify right side
    268,893.54x = 55,545,807,545.00
  5. Step 5: Solve for x
    x = 55,545,807,545.00/268,893.54
  6. Step 6: Final answer
    x = 206,571.74

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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.