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Finding the Fourth Proportional to 241.81, 333.86 and 154.60

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Solution

The fourth proportional to 241.81, 333.86 and 154.60 is: 213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.81 : 333.86 = 154.60 : x
  2. Step 2: Convert to fraction form
    241.81/333.86 = 154.60/x
  3. Step 3: Cross multiply
    241.81x = 333.86 × 154.60
  4. Step 4: Simplify right side
    241.81x = 51,614.76
  5. Step 5: Solve for x
    x = 51,614.76/241.81
  6. Step 6: Final answer
    x = 213.45

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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.