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Finding the Fourth Proportional to 164.41, 246.61 and 42.66

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Solution

The fourth proportional to 164.41, 246.61 and 42.66 is: 63.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.41 : 246.61 = 42.66 : x
  2. Step 2: Convert to fraction form
    164.41/246.61 = 42.66/x
  3. Step 3: Cross multiply
    164.41x = 246.61 × 42.66
  4. Step 4: Simplify right side
    164.41x = 10,520.44
  5. Step 5: Solve for x
    x = 10,520.44/164.41
  6. Step 6: Final answer
    x = 63.99

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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.