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Finding the Fourth Proportional to 397.35, 593.15 and 348.75

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Solution

The fourth proportional to 397.35, 593.15 and 348.75 is: 520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.35 : 593.15 = 348.75 : x
  2. Step 2: Convert to fraction form
    397.35/593.15 = 348.75/x
  3. Step 3: Cross multiply
    397.35x = 593.15 × 348.75
  4. Step 4: Simplify right side
    397.35x = 206,859.32
  5. Step 5: Solve for x
    x = 206,859.32/397.35
  6. Step 6: Final answer
    x = 520.60

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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.