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Finding the Fourth Proportional to 372.58, 556.91 and 323.44

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Solution

The fourth proportional to 372.58, 556.91 and 323.44 is: 483.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.58 : 556.91 = 323.44 : x
  2. Step 2: Convert to fraction form
    372.58/556.91 = 323.44/x
  3. Step 3: Cross multiply
    372.58x = 556.91 × 323.44
  4. Step 4: Simplify right side
    372.58x = 180,126.97
  5. Step 5: Solve for x
    x = 180,126.97/372.58
  6. Step 6: Final answer
    x = 483.46

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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.