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Finding the Fourth Proportional to 379.43, 569.20 and 174.01

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Solution

The fourth proportional to 379.43, 569.20 and 174.01 is: 261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.43 : 569.20 = 174.01 : x
  2. Step 2: Convert to fraction form
    379.43/569.20 = 174.01/x
  3. Step 3: Cross multiply
    379.43x = 569.20 × 174.01
  4. Step 4: Simplify right side
    379.43x = 99,045.62
  5. Step 5: Solve for x
    x = 99,045.62/379.43
  6. Step 6: Final answer
    x = 261.04

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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.