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Finding the Fourth Proportional to 241.25, 332.75 and 152.78

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Solution

The fourth proportional to 241.25, 332.75 and 152.78 is: 210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.25 : 332.75 = 152.78 : x
  2. Step 2: Convert to fraction form
    241.25/332.75 = 152.78/x
  3. Step 3: Cross multiply
    241.25x = 332.75 × 152.78
  4. Step 4: Simplify right side
    241.25x = 50,836.78
  5. Step 5: Solve for x
    x = 50,836.78/241.25
  6. Step 6: Final answer
    x = 210.72

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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.