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Finding the Fourth Proportional to 293.66, 404.02 and 223.30

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Solution

The fourth proportional to 293.66, 404.02 and 223.30 is: 307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.66 : 404.02 = 223.30 : x
  2. Step 2: Convert to fraction form
    293.66/404.02 = 223.30/x
  3. Step 3: Cross multiply
    293.66x = 404.02 × 223.30
  4. Step 4: Simplify right side
    293.66x = 90,218.45
  5. Step 5: Solve for x
    x = 90,218.45/293.66
  6. Step 6: Final answer
    x = 307.22

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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.