Home / 278,072.24-416,111.90-240,761.20

Finding the Fourth Proportional to 278,072.24, 416,111.90 and 240,761.20

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Solution

The fourth proportional to 278,072.24, 416,111.90 and 240,761.20 is: 360,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,072.24 : 416,111.90 = 240,761.20 : x
  2. Step 2: Convert to fraction form
    278,072.24/416,111.90 = 240,761.20/x
  3. Step 3: Cross multiply
    278,072.24x = 416,111.90 × 240,761.20
  4. Step 4: Simplify right side
    278,072.24x = 100,183,600,378.28
  5. Step 5: Solve for x
    x = 100,183,600,378.28/278,072.24
  6. Step 6: Final answer
    x = 360,279.04

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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.