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Finding the Fourth Proportional to 338.32, 466.86 and 188.94

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Solution

The fourth proportional to 338.32, 466.86 and 188.94 is: 260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.32 : 466.86 = 188.94 : x
  2. Step 2: Convert to fraction form
    338.32/466.86 = 188.94/x
  3. Step 3: Cross multiply
    338.32x = 466.86 × 188.94
  4. Step 4: Simplify right side
    338.32x = 88,208.53
  5. Step 5: Solve for x
    x = 88,208.53/338.32
  6. Step 6: Final answer
    x = 260.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.