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Finding the Fourth Proportional to 395.35, 590.17 and 346.75

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Solution

The fourth proportional to 395.35, 590.17 and 346.75 is: 517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.35 : 590.17 = 346.75 : x
  2. Step 2: Convert to fraction form
    395.35/590.17 = 346.75/x
  3. Step 3: Cross multiply
    395.35x = 590.17 × 346.75
  4. Step 4: Simplify right side
    395.35x = 204,641.45
  5. Step 5: Solve for x
    x = 204,641.45/395.35
  6. Step 6: Final answer
    x = 517.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.