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Finding the Fourth Proportional to 263.68, 393.72 and 236.08

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Solution

The fourth proportional to 263.68, 393.72 and 236.08 is: 352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.68 : 393.72 = 236.08 : x
  2. Step 2: Convert to fraction form
    263.68/393.72 = 236.08/x
  3. Step 3: Cross multiply
    263.68x = 393.72 × 236.08
  4. Step 4: Simplify right side
    263.68x = 92,949.42
  5. Step 5: Solve for x
    x = 92,949.42/263.68
  6. Step 6: Final answer
    x = 352.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.