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Finding the Fourth Proportional to 264.01, 395.52 and 220.95

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Solution

The fourth proportional to 264.01, 395.52 and 220.95 is: 331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.01 : 395.52 = 220.95 : x
  2. Step 2: Convert to fraction form
    264.01/395.52 = 220.95/x
  3. Step 3: Cross multiply
    264.01x = 395.52 × 220.95
  4. Step 4: Simplify right side
    264.01x = 87,390.14
  5. Step 5: Solve for x
    x = 87,390.14/264.01
  6. Step 6: Final answer
    x = 331.01

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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.