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Finding the Fourth Proportional to 294.44, 441.73 and 172.81

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Solution

The fourth proportional to 294.44, 441.73 and 172.81 is: 259.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.44 : 441.73 = 172.81 : x
  2. Step 2: Convert to fraction form
    294.44/441.73 = 172.81/x
  3. Step 3: Cross multiply
    294.44x = 441.73 × 172.81
  4. Step 4: Simplify right side
    294.44x = 76,335.36
  5. Step 5: Solve for x
    x = 76,335.36/294.44
  6. Step 6: Final answer
    x = 259.26

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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.