Home / 274,376.20-412,439.10-258,629.80

Finding the Fourth Proportional to 274,376.20, 412,439.10 and 258,629.80

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Solution

The fourth proportional to 274,376.20, 412,439.10 and 258,629.80 is: 388,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,376.20 : 412,439.10 = 258,629.80 : x
  2. Step 2: Convert to fraction form
    274,376.20/412,439.10 = 258,629.80/x
  3. Step 3: Cross multiply
    274,376.20x = 412,439.10 × 258,629.80
  4. Step 4: Simplify right side
    274,376.20x = 106,669,041,945.18
  5. Step 5: Solve for x
    x = 106,669,041,945.18/274,376.20
  6. Step 6: Final answer
    x = 388,769.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.