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Finding the Fourth Proportional to 240.66, 361.53 and 186.39

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Solution

The fourth proportional to 240.66, 361.53 and 186.39 is: 280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.66 : 361.53 = 186.39 : x
  2. Step 2: Convert to fraction form
    240.66/361.53 = 186.39/x
  3. Step 3: Cross multiply
    240.66x = 361.53 × 186.39
  4. Step 4: Simplify right side
    240.66x = 67,385.58
  5. Step 5: Solve for x
    x = 67,385.58/240.66
  6. Step 6: Final answer
    x = 280.00

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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.