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Finding the Fourth Proportional to 322.04, 444.56 and 222.56

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Solution

The fourth proportional to 322.04, 444.56 and 222.56 is: 307.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.04 : 444.56 = 222.56 : x
  2. Step 2: Convert to fraction form
    322.04/444.56 = 222.56/x
  3. Step 3: Cross multiply
    322.04x = 444.56 × 222.56
  4. Step 4: Simplify right side
    322.04x = 98,937.94
  5. Step 5: Solve for x
    x = 98,937.94/322.04
  6. Step 6: Final answer
    x = 307.23

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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.