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Finding the Fourth Proportional to 479.10, 719.04 and 262.82

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Solution

The fourth proportional to 479.10, 719.04 and 262.82 is: 394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.10 : 719.04 = 262.82 : x
  2. Step 2: Convert to fraction form
    479.10/719.04 = 262.82/x
  3. Step 3: Cross multiply
    479.10x = 719.04 × 262.82
  4. Step 4: Simplify right side
    479.10x = 188,978.09
  5. Step 5: Solve for x
    x = 188,978.09/479.10
  6. Step 6: Final answer
    x = 394.44

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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.