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Finding the Fourth Proportional to 237.85, 356.30 and 186.25

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Solution

The fourth proportional to 237.85, 356.30 and 186.25 is: 279.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.85 : 356.30 = 186.25 : x
  2. Step 2: Convert to fraction form
    237.85/356.30 = 186.25/x
  3. Step 3: Cross multiply
    237.85x = 356.30 × 186.25
  4. Step 4: Simplify right side
    237.85x = 66,361.87
  5. Step 5: Solve for x
    x = 66,361.87/237.85
  6. Step 6: Final answer
    x = 279.01

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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.