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Finding the Fourth Proportional to 379,074.78, 568,614.02 and 154,437.39

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Solution

The fourth proportional to 379,074.78, 568,614.02 and 154,437.39 is: 231,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,074.78 : 568,614.02 = 154,437.39 : x
  2. Step 2: Convert to fraction form
    379,074.78/568,614.02 = 154,437.39/x
  3. Step 3: Cross multiply
    379,074.78x = 568,614.02 × 154,437.39
  4. Step 4: Simplify right side
    379,074.78x = 87,815,264,394.02
  5. Step 5: Solve for x
    x = 87,815,264,394.02/379,074.78
  6. Step 6: Final answer
    x = 231,656.84

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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.