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Finding the Fourth Proportional to 240.09, 331.59 and 152.82

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Solution

The fourth proportional to 240.09, 331.59 and 152.82 is: 211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.09 : 331.59 = 152.82 : x
  2. Step 2: Convert to fraction form
    240.09/331.59 = 152.82/x
  3. Step 3: Cross multiply
    240.09x = 331.59 × 152.82
  4. Step 4: Simplify right side
    240.09x = 50,673.58
  5. Step 5: Solve for x
    x = 50,673.58/240.09
  6. Step 6: Final answer
    x = 211.06

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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.