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Finding the Fourth Proportional to 241.61, 362.31 and 77.05

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Solution

The fourth proportional to 241.61, 362.31 and 77.05 is: 115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.61 : 362.31 = 77.05 : x
  2. Step 2: Convert to fraction form
    241.61/362.31 = 77.05/x
  3. Step 3: Cross multiply
    241.61x = 362.31 × 77.05
  4. Step 4: Simplify right side
    241.61x = 27,914.89
  5. Step 5: Solve for x
    x = 27,914.89/241.61
  6. Step 6: Final answer
    x = 115.54

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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.