Home / 300,999.12-451,573.82-212,425.62

Finding the Fourth Proportional to 300,999.12, 451,573.82 and 212,425.62

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Solution

The fourth proportional to 300,999.12, 451,573.82 and 212,425.62 is: 318,691.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,999.12 : 451,573.82 = 212,425.62 : x
  2. Step 2: Convert to fraction form
    300,999.12/451,573.82 = 212,425.62/x
  3. Step 3: Cross multiply
    300,999.12x = 451,573.82 × 212,425.62
  4. Step 4: Simplify right side
    300,999.12x = 95,925,847,627.14
  5. Step 5: Solve for x
    x = 95,925,847,627.14/300,999.12
  6. Step 6: Final answer
    x = 318,691.46

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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.