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Finding the Fourth Proportional to 379.17, 570.06 and 353.88

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Solution

The fourth proportional to 379.17, 570.06 and 353.88 is: 532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.17 : 570.06 = 353.88 : x
  2. Step 2: Convert to fraction form
    379.17/570.06 = 353.88/x
  3. Step 3: Cross multiply
    379.17x = 570.06 × 353.88
  4. Step 4: Simplify right side
    379.17x = 201,732.83
  5. Step 5: Solve for x
    x = 201,732.83/379.17
  6. Step 6: Final answer
    x = 532.04

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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.