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Finding the Fourth Proportional to 263.89, 364.14 and 147.43

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Solution

The fourth proportional to 263.89, 364.14 and 147.43 is: 203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.89 : 364.14 = 147.43 : x
  2. Step 2: Convert to fraction form
    263.89/364.14 = 147.43/x
  3. Step 3: Cross multiply
    263.89x = 364.14 × 147.43
  4. Step 4: Simplify right side
    263.89x = 53,685.16
  5. Step 5: Solve for x
    x = 53,685.16/263.89
  6. Step 6: Final answer
    x = 203.44

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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.