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Finding the Fourth Proportional to 479.16, 718.92 and 222.66

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Solution

The fourth proportional to 479.16, 718.92 and 222.66 is: 334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.16 : 718.92 = 222.66 : x
  2. Step 2: Convert to fraction form
    479.16/718.92 = 222.66/x
  3. Step 3: Cross multiply
    479.16x = 718.92 × 222.66
  4. Step 4: Simplify right side
    479.16x = 160,074.73
  5. Step 5: Solve for x
    x = 160,074.73/479.16
  6. Step 6: Final answer
    x = 334.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.