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Finding the Fourth Proportional to 263.62, 393.35 and 236.38

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Solution

The fourth proportional to 263.62, 393.35 and 236.38 is: 352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.62 : 393.35 = 236.38 : x
  2. Step 2: Convert to fraction form
    263.62/393.35 = 236.38/x
  3. Step 3: Cross multiply
    263.62x = 393.35 × 236.38
  4. Step 4: Simplify right side
    263.62x = 92,980.07
  5. Step 5: Solve for x
    x = 92,980.07/263.62
  6. Step 6: Final answer
    x = 352.70

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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.