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Finding the Fourth Proportional to 379,149.16, 568,722.12 and 154,459.48

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Solution

The fourth proportional to 379,149.16, 568,722.12 and 154,459.48 is: 231,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,149.16 : 568,722.12 = 154,459.48 : x
  2. Step 2: Convert to fraction form
    379,149.16/568,722.12 = 154,459.48/x
  3. Step 3: Cross multiply
    379,149.16x = 568,722.12 × 154,459.48
  4. Step 4: Simplify right side
    379,149.16x = 87,844,522,919.70
  5. Step 5: Solve for x
    x = 87,844,522,919.70/379,149.16
  6. Step 6: Final answer
    x = 231,688.56

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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.