Home / 278,496.72-383,354.16-240,377.20

Finding the Fourth Proportional to 278,496.72, 383,354.16 and 240,377.20

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Solution

The fourth proportional to 278,496.72, 383,354.16 and 240,377.20 is: 330,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,496.72 : 383,354.16 = 240,377.20 : x
  2. Step 2: Convert to fraction form
    278,496.72/383,354.16 = 240,377.20/x
  3. Step 3: Cross multiply
    278,496.72x = 383,354.16 × 240,377.20
  4. Step 4: Simplify right side
    278,496.72x = 92,149,599,589.15
  5. Step 5: Solve for x
    x = 92,149,599,589.15/278,496.72
  6. Step 6: Final answer
    x = 330,882.17

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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.