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Finding the Fourth Proportional to 479.28, 719.02 and 232.66

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Solution

The fourth proportional to 479.28, 719.02 and 232.66 is: 349.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.28 : 719.02 = 232.66 : x
  2. Step 2: Convert to fraction form
    479.28/719.02 = 232.66/x
  3. Step 3: Cross multiply
    479.28x = 719.02 × 232.66
  4. Step 4: Simplify right side
    479.28x = 167,287.19
  5. Step 5: Solve for x
    x = 167,287.19/479.28
  6. Step 6: Final answer
    x = 349.04

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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.