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Finding the Fourth Proportional to 361.67, 543.04 and 207.77

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Solution

The fourth proportional to 361.67, 543.04 and 207.77 is: 311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.67 : 543.04 = 207.77 : x
  2. Step 2: Convert to fraction form
    361.67/543.04 = 207.77/x
  3. Step 3: Cross multiply
    361.67x = 543.04 × 207.77
  4. Step 4: Simplify right side
    361.67x = 112,824.19
  5. Step 5: Solve for x
    x = 112,824.19/361.67
  6. Step 6: Final answer
    x = 311.96

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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.