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Finding the Fourth Proportional to 552.56, 828.81 and 187.34

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Solution

The fourth proportional to 552.56, 828.81 and 187.34 is: 280.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.56 : 828.81 = 187.34 : x
  2. Step 2: Convert to fraction form
    552.56/828.81 = 187.34/x
  3. Step 3: Cross multiply
    552.56x = 828.81 × 187.34
  4. Step 4: Simplify right side
    552.56x = 155,265.12
  5. Step 5: Solve for x
    x = 155,265.12/552.56
  6. Step 6: Final answer
    x = 280.99

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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.