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Finding the Fourth Proportional to 239.87, 331.18 and 184.51

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Solution

The fourth proportional to 239.87, 331.18 and 184.51 is: 254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.87 : 331.18 = 184.51 : x
  2. Step 2: Convert to fraction form
    239.87/331.18 = 184.51/x
  3. Step 3: Cross multiply
    239.87x = 331.18 × 184.51
  4. Step 4: Simplify right side
    239.87x = 61,106.02
  5. Step 5: Solve for x
    x = 61,106.02/239.87
  6. Step 6: Final answer
    x = 254.75

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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.