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Finding the Fourth Proportional to 264.90, 365.56 and 154.38

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Solution

The fourth proportional to 264.90, 365.56 and 154.38 is: 213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.90 : 365.56 = 154.38 : x
  2. Step 2: Convert to fraction form
    264.90/365.56 = 154.38/x
  3. Step 3: Cross multiply
    264.90x = 365.56 × 154.38
  4. Step 4: Simplify right side
    264.90x = 56,435.15
  5. Step 5: Solve for x
    x = 56,435.15/264.90
  6. Step 6: Final answer
    x = 213.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.