Home / 445,323.12-667,999.20-145,820.88

Finding the Fourth Proportional to 445,323.12, 667,999.20 and 145,820.88

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Solution

The fourth proportional to 445,323.12, 667,999.20 and 145,820.88 is: 218,736.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,323.12 : 667,999.20 = 145,820.88 : x
  2. Step 2: Convert to fraction form
    445,323.12/667,999.20 = 145,820.88/x
  3. Step 3: Cross multiply
    445,323.12x = 667,999.20 × 145,820.88
  4. Step 4: Simplify right side
    445,323.12x = 97,408,231,183.30
  5. Step 5: Solve for x
    x = 97,408,231,183.30/445,323.12
  6. Step 6: Final answer
    x = 218,736.07

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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.