Home / 254,336.90-381,566.10-76,845.65

Finding the Fourth Proportional to 254,336.90, 381,566.10 and 76,845.65

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Solution

The fourth proportional to 254,336.90, 381,566.10 and 76,845.65 is: 115,286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,336.90 : 381,566.10 = 76,845.65 : x
  2. Step 2: Convert to fraction form
    254,336.90/381,566.10 = 76,845.65/x
  3. Step 3: Cross multiply
    254,336.90x = 381,566.10 × 76,845.65
  4. Step 4: Simplify right side
    254,336.90x = 29,321,694,972.47
  5. Step 5: Solve for x
    x = 29,321,694,972.47/254,336.90
  6. Step 6: Final answer
    x = 115,286.83

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1.5x scale

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.