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Finding the Fourth Proportional to 379.37, 571.29 and 341.30

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Solution

The fourth proportional to 379.37, 571.29 and 341.30 is: 513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.37 : 571.29 = 341.30 : x
  2. Step 2: Convert to fraction form
    379.37/571.29 = 341.30/x
  3. Step 3: Cross multiply
    379.37x = 571.29 × 341.30
  4. Step 4: Simplify right side
    379.37x = 194,981.28
  5. Step 5: Solve for x
    x = 194,981.28/379.37
  6. Step 6: Final answer
    x = 513.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.