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Finding the Fourth Proportional to 379.10, 522.86 and 334.88

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Solution

The fourth proportional to 379.10, 522.86 and 334.88 is: 461.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.10 : 522.86 = 334.88 : x
  2. Step 2: Convert to fraction form
    379.10/522.86 = 334.88/x
  3. Step 3: Cross multiply
    379.10x = 522.86 × 334.88
  4. Step 4: Simplify right side
    379.10x = 175,095.36
  5. Step 5: Solve for x
    x = 175,095.36/379.10
  6. Step 6: Final answer
    x = 461.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.