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Finding the Fourth Proportional to 367.91, 552.09 and 148.51

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Solution

The fourth proportional to 367.91, 552.09 and 148.51 is: 222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.91 : 552.09 = 148.51 : x
  2. Step 2: Convert to fraction form
    367.91/552.09 = 148.51/x
  3. Step 3: Cross multiply
    367.91x = 552.09 × 148.51
  4. Step 4: Simplify right side
    367.91x = 81,988.13
  5. Step 5: Solve for x
    x = 81,988.13/367.91
  6. Step 6: Final answer
    x = 222.85

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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.