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Finding the Fourth Proportional to 228.19, 344.00 and 218.93

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Solution

The fourth proportional to 228.19, 344.00 and 218.93 is: 330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.19 : 344.00 = 218.93 : x
  2. Step 2: Convert to fraction form
    228.19/344.00 = 218.93/x
  3. Step 3: Cross multiply
    228.19x = 344.00 × 218.93
  4. Step 4: Simplify right side
    228.19x = 75,310.48
  5. Step 5: Solve for x
    x = 75,310.48/228.19
  6. Step 6: Final answer
    x = 330.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.