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Finding the Fourth Proportional to 372.16, 558.60 and 354.16

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Solution

The fourth proportional to 372.16, 558.60 and 354.16 is: 531.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.16 : 558.60 = 354.16 : x
  2. Step 2: Convert to fraction form
    372.16/558.60 = 354.16/x
  3. Step 3: Cross multiply
    372.16x = 558.60 × 354.16
  4. Step 4: Simplify right side
    372.16x = 197,833.78
  5. Step 5: Solve for x
    x = 197,833.78/372.16
  6. Step 6: Final answer
    x = 531.58

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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.