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Finding the Fourth Proportional to 293.22, 439.73 and 228.29

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Solution

The fourth proportional to 293.22, 439.73 and 228.29 is: 342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.22 : 439.73 = 228.29 : x
  2. Step 2: Convert to fraction form
    293.22/439.73 = 228.29/x
  3. Step 3: Cross multiply
    293.22x = 439.73 × 228.29
  4. Step 4: Simplify right side
    293.22x = 100,384.82
  5. Step 5: Solve for x
    x = 100,384.82/293.22
  6. Step 6: Final answer
    x = 342.36

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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.