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Finding the Fourth Proportional to 360.79, 539.06 and 222.75

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Solution

The fourth proportional to 360.79, 539.06 and 222.75 is: 332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.79 : 539.06 = 222.75 : x
  2. Step 2: Convert to fraction form
    360.79/539.06 = 222.75/x
  3. Step 3: Cross multiply
    360.79x = 539.06 × 222.75
  4. Step 4: Simplify right side
    360.79x = 120,074.50
  5. Step 5: Solve for x
    x = 120,074.50/360.79
  6. Step 6: Final answer
    x = 332.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.