Home / 331,317.90-496,976.85-278,829.90

Finding the Fourth Proportional to 331,317.90, 496,976.85 and 278,829.90

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Solution

The fourth proportional to 331,317.90, 496,976.85 and 278,829.90 is: 418,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,317.90 : 496,976.85 = 278,829.90 : x
  2. Step 2: Convert to fraction form
    331,317.90/496,976.85 = 278,829.90/x
  3. Step 3: Cross multiply
    331,317.90x = 496,976.85 × 278,829.90
  4. Step 4: Simplify right side
    331,317.90x = 138,572,005,387.82
  5. Step 5: Solve for x
    x = 138,572,005,387.82/331,317.90
  6. Step 6: Final answer
    x = 418,244.85

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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.