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Finding the Fourth Proportional to 393.71, 593.33 and 375.19

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Solution

The fourth proportional to 393.71, 593.33 and 375.19 is: 565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.71 : 593.33 = 375.19 : x
  2. Step 2: Convert to fraction form
    393.71/593.33 = 375.19/x
  3. Step 3: Cross multiply
    393.71x = 593.33 × 375.19
  4. Step 4: Simplify right side
    393.71x = 222,611.48
  5. Step 5: Solve for x
    x = 222,611.48/393.71
  6. Step 6: Final answer
    x = 565.42

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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.