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Finding the Fourth Proportional to 553.48, 829.82 and 188.04

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Solution

The fourth proportional to 553.48, 829.82 and 188.04 is: 281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.48 : 829.82 = 188.04 : x
  2. Step 2: Convert to fraction form
    553.48/829.82 = 188.04/x
  3. Step 3: Cross multiply
    553.48x = 829.82 × 188.04
  4. Step 4: Simplify right side
    553.48x = 156,039.35
  5. Step 5: Solve for x
    x = 156,039.35/553.48
  6. Step 6: Final answer
    x = 281.92

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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.