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Finding the Fourth Proportional to 373.28, 558.96 and 312.26

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Solution

The fourth proportional to 373.28, 558.96 and 312.26 is: 467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.28 : 558.96 = 312.26 : x
  2. Step 2: Convert to fraction form
    373.28/558.96 = 312.26/x
  3. Step 3: Cross multiply
    373.28x = 558.96 × 312.26
  4. Step 4: Simplify right side
    373.28x = 174,540.85
  5. Step 5: Solve for x
    x = 174,540.85/373.28
  6. Step 6: Final answer
    x = 467.59

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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.