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Finding the Fourth Proportional to 479.27, 719.39 and 323.08

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Solution

The fourth proportional to 479.27, 719.39 and 323.08 is: 484.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.27 : 719.39 = 323.08 : x
  2. Step 2: Convert to fraction form
    479.27/719.39 = 323.08/x
  3. Step 3: Cross multiply
    479.27x = 719.39 × 323.08
  4. Step 4: Simplify right side
    479.27x = 232,416.92
  5. Step 5: Solve for x
    x = 232,416.92/479.27
  6. Step 6: Final answer
    x = 484.94

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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.