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Finding the Fourth Proportional to 263.05, 363.01 and 145.03

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Solution

The fourth proportional to 263.05, 363.01 and 145.03 is: 200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.05 : 363.01 = 145.03 : x
  2. Step 2: Convert to fraction form
    263.05/363.01 = 145.03/x
  3. Step 3: Cross multiply
    263.05x = 363.01 × 145.03
  4. Step 4: Simplify right side
    263.05x = 52,647.60
  5. Step 5: Solve for x
    x = 52,647.60/263.05
  6. Step 6: Final answer
    x = 200.14

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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.