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Finding the Fourth Proportional to 479.62, 718.21 and 333.18

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Solution

The fourth proportional to 479.62, 718.21 and 333.18 is: 498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.62 : 718.21 = 333.18 : x
  2. Step 2: Convert to fraction form
    479.62/718.21 = 333.18/x
  3. Step 3: Cross multiply
    479.62x = 718.21 × 333.18
  4. Step 4: Simplify right side
    479.62x = 239,293.21
  5. Step 5: Solve for x
    x = 239,293.21/479.62
  6. Step 6: Final answer
    x = 498.92

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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.