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Finding the Fourth Proportional to 379,044.23, 568,074.67 and 154,142.87

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Solution

The fourth proportional to 379,044.23, 568,074.67 and 154,142.87 is: 231,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,044.23 : 568,074.67 = 154,142.87 : x
  2. Step 2: Convert to fraction form
    379,044.23/568,074.67 = 154,142.87/x
  3. Step 3: Cross multiply
    379,044.23x = 568,074.67 × 154,142.87
  4. Step 4: Simplify right side
    379,044.23x = 87,564,656,782.37
  5. Step 5: Solve for x
    x = 87,564,656,782.37/379,044.23
  6. Step 6: Final answer
    x = 231,014.35

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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.