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Finding the Fourth Proportional to 372.43, 559.55 and 304.39

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Solution

The fourth proportional to 372.43, 559.55 and 304.39 is: 457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.43 : 559.55 = 304.39 : x
  2. Step 2: Convert to fraction form
    372.43/559.55 = 304.39/x
  3. Step 3: Cross multiply
    372.43x = 559.55 × 304.39
  4. Step 4: Simplify right side
    372.43x = 170,321.42
  5. Step 5: Solve for x
    x = 170,321.42/372.43
  6. Step 6: Final answer
    x = 457.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.