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Finding the Fourth Proportional to 264.28, 396.36 and 101.88

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Solution

The fourth proportional to 264.28, 396.36 and 101.88 is: 152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.28 : 396.36 = 101.88 : x
  2. Step 2: Convert to fraction form
    264.28/396.36 = 101.88/x
  3. Step 3: Cross multiply
    264.28x = 396.36 × 101.88
  4. Step 4: Simplify right side
    264.28x = 40,381.16
  5. Step 5: Solve for x
    x = 40,381.16/264.28
  6. Step 6: Final answer
    x = 152.80

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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.