Home / 330,209.75-455,691.23-186,997.70

Finding the Fourth Proportional to 330,209.75, 455,691.23 and 186,997.70

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Solution

The fourth proportional to 330,209.75, 455,691.23 and 186,997.70 is: 258,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,209.75 : 455,691.23 = 186,997.70 : x
  2. Step 2: Convert to fraction form
    330,209.75/455,691.23 = 186,997.70/x
  3. Step 3: Cross multiply
    330,209.75x = 455,691.23 × 186,997.70
  4. Step 4: Simplify right side
    330,209.75x = 85,213,211,920.17
  5. Step 5: Solve for x
    x = 85,213,211,920.17/330,209.75
  6. Step 6: Final answer
    x = 258,057.83

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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.