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Finding the Fourth Proportional to 263.49, 363.62 and 145.47

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Solution

The fourth proportional to 263.49, 363.62 and 145.47 is: 200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.49 : 363.62 = 145.47 : x
  2. Step 2: Convert to fraction form
    263.49/363.62 = 145.47/x
  3. Step 3: Cross multiply
    263.49x = 363.62 × 145.47
  4. Step 4: Simplify right side
    263.49x = 52,893.26
  5. Step 5: Solve for x
    x = 52,893.26/263.49
  6. Step 6: Final answer
    x = 200.74

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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.