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Finding the Fourth Proportional to 334.66, 501.63 and 218.74

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Solution

The fourth proportional to 334.66, 501.63 and 218.74 is: 327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.66 : 501.63 = 218.74 : x
  2. Step 2: Convert to fraction form
    334.66/501.63 = 218.74/x
  3. Step 3: Cross multiply
    334.66x = 501.63 × 218.74
  4. Step 4: Simplify right side
    334.66x = 109,726.55
  5. Step 5: Solve for x
    x = 109,726.55/334.66
  6. Step 6: Final answer
    x = 327.87

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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.