Home / 276,940.40-382,178.10-149,616

Finding the Fourth Proportional to 276,940.40, 382,178.10 and 149,616

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Solution

The fourth proportional to 276,940.40, 382,178.10 and 149,616 is: 206,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,940.40 : 382,178.10 = 149,616 : x
  2. Step 2: Convert to fraction form
    276,940.40/382,178.10 = 149,616/x
  3. Step 3: Cross multiply
    276,940.40x = 382,178.10 × 149,616
  4. Step 4: Simplify right side
    276,940.40x = 57,179,958,609.60
  5. Step 5: Solve for x
    x = 57,179,958,609.60/276,940.40
  6. Step 6: Final answer
    x = 206,470.27

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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.