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Finding the Fourth Proportional to 479.41, 719.33 and 262.98

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Solution

The fourth proportional to 479.41, 719.33 and 262.98 is: 394.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.41 : 719.33 = 262.98 : x
  2. Step 2: Convert to fraction form
    479.41/719.33 = 262.98/x
  3. Step 3: Cross multiply
    479.41x = 719.33 × 262.98
  4. Step 4: Simplify right side
    479.41x = 189,168.09
  5. Step 5: Solve for x
    x = 189,168.09/479.41
  6. Step 6: Final answer
    x = 394.59

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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.