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Finding the Fourth Proportional to 552.84, 829.20 and 187.56

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Solution

The fourth proportional to 552.84, 829.20 and 187.56 is: 281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.84 : 829.20 = 187.56 : x
  2. Step 2: Convert to fraction form
    552.84/829.20 = 187.56/x
  3. Step 3: Cross multiply
    552.84x = 829.20 × 187.56
  4. Step 4: Simplify right side
    552.84x = 155,524.75
  5. Step 5: Solve for x
    x = 155,524.75/552.84
  6. Step 6: Final answer
    x = 281.32

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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.