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Finding the Fourth Proportional to 558.89, 838.38 and 174.14

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Solution

The fourth proportional to 558.89, 838.38 and 174.14 is: 261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.89 : 838.38 = 174.14 : x
  2. Step 2: Convert to fraction form
    558.89/838.38 = 174.14/x
  3. Step 3: Cross multiply
    558.89x = 838.38 × 174.14
  4. Step 4: Simplify right side
    558.89x = 145,995.49
  5. Step 5: Solve for x
    x = 145,995.49/558.89
  6. Step 6: Final answer
    x = 261.22

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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.