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Finding the Fourth Proportional to 372.09, 558.54 and 295.55

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Solution

The fourth proportional to 372.09, 558.54 and 295.55 is: 443.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.09 : 558.54 = 295.55 : x
  2. Step 2: Convert to fraction form
    372.09/558.54 = 295.55/x
  3. Step 3: Cross multiply
    372.09x = 558.54 × 295.55
  4. Step 4: Simplify right side
    372.09x = 165,072.23
  5. Step 5: Solve for x
    x = 165,072.23/372.09
  6. Step 6: Final answer
    x = 443.64

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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.