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Finding the Fourth Proportional to 379,162.56, 568,532.16 and 238,620

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Solution

The fourth proportional to 379,162.56, 568,532.16 and 238,620 is: 357,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,162.56 : 568,532.16 = 238,620 : x
  2. Step 2: Convert to fraction form
    379,162.56/568,532.16 = 238,620/x
  3. Step 3: Cross multiply
    379,162.56x = 568,532.16 × 238,620
  4. Step 4: Simplify right side
    379,162.56x = 135,663,144,019.20
  5. Step 5: Solve for x
    x = 135,663,144,019.20/379,162.56
  6. Step 6: Final answer
    x = 357,796.78

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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.