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Finding the Fourth Proportional to 293.94, 406.44 and 289.30

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Solution

The fourth proportional to 293.94, 406.44 and 289.30 is: 400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.94 : 406.44 = 289.30 : x
  2. Step 2: Convert to fraction form
    293.94/406.44 = 289.30/x
  3. Step 3: Cross multiply
    293.94x = 406.44 × 289.30
  4. Step 4: Simplify right side
    293.94x = 117,583.09
  5. Step 5: Solve for x
    x = 117,583.09/293.94
  6. Step 6: Final answer
    x = 400.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.