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Finding the Fourth Proportional to 161.00, 241.23 and 145.45

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Solution

The fourth proportional to 161.00, 241.23 and 145.45 is: 217.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.00 : 241.23 = 145.45 : x
  2. Step 2: Convert to fraction form
    161.00/241.23 = 145.45/x
  3. Step 3: Cross multiply
    161.00x = 241.23 × 145.45
  4. Step 4: Simplify right side
    161.00x = 35,086.30
  5. Step 5: Solve for x
    x = 35,086.30/161.00
  6. Step 6: Final answer
    x = 217.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.