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Finding the Fourth Proportional to 553.34, 829.82 and 188.03

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Solution

The fourth proportional to 553.34, 829.82 and 188.03 is: 281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.34 : 829.82 = 188.03 : x
  2. Step 2: Convert to fraction form
    553.34/829.82 = 188.03/x
  3. Step 3: Cross multiply
    553.34x = 829.82 × 188.03
  4. Step 4: Simplify right side
    553.34x = 156,025.97
  5. Step 5: Solve for x
    x = 156,025.97/553.34
  6. Step 6: Final answer
    x = 281.97

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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.