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Finding the Fourth Proportional to 264.96, 365.64 and 154.43

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Solution

The fourth proportional to 264.96, 365.64 and 154.43 is: 213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.96 : 365.64 = 154.43 : x
  2. Step 2: Convert to fraction form
    264.96/365.64 = 154.43/x
  3. Step 3: Cross multiply
    264.96x = 365.64 × 154.43
  4. Step 4: Simplify right side
    264.96x = 56,466.12
  5. Step 5: Solve for x
    x = 56,466.12/264.96
  6. Step 6: Final answer
    x = 213.11

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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.