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Finding the Fourth Proportional to 372.08, 558.08 and 234.72

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Solution

The fourth proportional to 372.08, 558.08 and 234.72 is: 352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.08 : 558.08 = 234.72 : x
  2. Step 2: Convert to fraction form
    372.08/558.08 = 234.72/x
  3. Step 3: Cross multiply
    372.08x = 558.08 × 234.72
  4. Step 4: Simplify right side
    372.08x = 130,992.54
  5. Step 5: Solve for x
    x = 130,992.54/372.08
  6. Step 6: Final answer
    x = 352.05

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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.