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Finding the Fourth Proportional to 242.41, 361.67 and 223.05

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Solution

The fourth proportional to 242.41, 361.67 and 223.05 is: 332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.41 : 361.67 = 223.05 : x
  2. Step 2: Convert to fraction form
    242.41/361.67 = 223.05/x
  3. Step 3: Cross multiply
    242.41x = 361.67 × 223.05
  4. Step 4: Simplify right side
    242.41x = 80,670.49
  5. Step 5: Solve for x
    x = 80,670.49/242.41
  6. Step 6: Final answer
    x = 332.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.