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Finding the Fourth Proportional to 334.16, 500.70 and 218.36

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Solution

The fourth proportional to 334.16, 500.70 and 218.36 is: 327.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.16 : 500.70 = 218.36 : x
  2. Step 2: Convert to fraction form
    334.16/500.70 = 218.36/x
  3. Step 3: Cross multiply
    334.16x = 500.70 × 218.36
  4. Step 4: Simplify right side
    334.16x = 109,332.85
  5. Step 5: Solve for x
    x = 109,332.85/334.16
  6. Step 6: Final answer
    x = 327.19

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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.