Home / 445,217.65-667,920.03-145,674.89

Finding the Fourth Proportional to 445,217.65, 667,920.03 and 145,674.89

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Solution

The fourth proportional to 445,217.65, 667,920.03 and 145,674.89 is: 218,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,217.65 : 667,920.03 = 145,674.89 : x
  2. Step 2: Convert to fraction form
    445,217.65/667,920.03 = 145,674.89/x
  3. Step 3: Cross multiply
    445,217.65x = 667,920.03 × 145,674.89
  4. Step 4: Simplify right side
    445,217.65x = 97,299,175,517.87
  5. Step 5: Solve for x
    x = 97,299,175,517.87/445,217.65
  6. Step 6: Final answer
    x = 218,542.94

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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.