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Finding the Fourth Proportional to 294.20, 440.99 and 111.51

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Solution

The fourth proportional to 294.20, 440.99 and 111.51 is: 167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.20 : 440.99 = 111.51 : x
  2. Step 2: Convert to fraction form
    294.20/440.99 = 111.51/x
  3. Step 3: Cross multiply
    294.20x = 440.99 × 111.51
  4. Step 4: Simplify right side
    294.20x = 49,174.24
  5. Step 5: Solve for x
    x = 49,174.24/294.20
  6. Step 6: Final answer
    x = 167.15

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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.