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Finding the Fourth Proportional to 393.52, 593.04 and 354.52

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Solution

The fourth proportional to 393.52, 593.04 and 354.52 is: 534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.52 : 593.04 = 354.52 : x
  2. Step 2: Convert to fraction form
    393.52/593.04 = 354.52/x
  3. Step 3: Cross multiply
    393.52x = 593.04 × 354.52
  4. Step 4: Simplify right side
    393.52x = 210,244.54
  5. Step 5: Solve for x
    x = 210,244.54/393.52
  6. Step 6: Final answer
    x = 534.27

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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.