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Finding the Fourth Proportional to 379,149.66, 568,722.87 and 154,459.98

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Solution

The fourth proportional to 379,149.66, 568,722.87 and 154,459.98 is: 231,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,149.66 : 568,722.87 = 154,459.98 : x
  2. Step 2: Convert to fraction form
    379,149.66/568,722.87 = 154,459.98/x
  3. Step 3: Cross multiply
    379,149.66x = 568,722.87 × 154,459.98
  4. Step 4: Simplify right side
    379,149.66x = 87,844,923,125.74
  5. Step 5: Solve for x
    x = 87,844,923,125.74/379,149.66
  6. Step 6: Final answer
    x = 231,689.31

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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.