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Finding the Fourth Proportional to 842.26, 1,262.81 and 294.14

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Solution

The fourth proportional to 842.26, 1,262.81 and 294.14 is: 441.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    842.26 : 1,262.81 = 294.14 : x
  2. Step 2: Convert to fraction form
    842.26/1,262.81 = 294.14/x
  3. Step 3: Cross multiply
    842.26x = 1,262.81 × 294.14
  4. Step 4: Simplify right side
    842.26x = 371,446.83
  5. Step 5: Solve for x
    x = 371,446.83/842.26
  6. Step 6: Final answer
    x = 441.01

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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.