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Finding the Fourth Proportional to 369.08, 553.48 and 125.56

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Solution

The fourth proportional to 369.08, 553.48 and 125.56 is: 188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.08 : 553.48 = 125.56 : x
  2. Step 2: Convert to fraction form
    369.08/553.48 = 125.56/x
  3. Step 3: Cross multiply
    369.08x = 553.48 × 125.56
  4. Step 4: Simplify right side
    369.08x = 69,494.95
  5. Step 5: Solve for x
    x = 69,494.95/369.08
  6. Step 6: Final answer
    x = 188.29

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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.