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Finding the Fourth Proportional to 393.58, 593.22 and 371.26

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Solution

The fourth proportional to 393.58, 593.22 and 371.26 is: 559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.58 : 593.22 = 371.26 : x
  2. Step 2: Convert to fraction form
    393.58/593.22 = 371.26/x
  3. Step 3: Cross multiply
    393.58x = 593.22 × 371.26
  4. Step 4: Simplify right side
    393.58x = 220,239.32
  5. Step 5: Solve for x
    x = 220,239.32/393.58
  6. Step 6: Final answer
    x = 559.57

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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.