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Finding the Fourth Proportional to 479.43, 718.98 and 154.73

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Solution

The fourth proportional to 479.43, 718.98 and 154.73 is: 232.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.43 : 718.98 = 154.73 : x
  2. Step 2: Convert to fraction form
    479.43/718.98 = 154.73/x
  3. Step 3: Cross multiply
    479.43x = 718.98 × 154.73
  4. Step 4: Simplify right side
    479.43x = 111,244.18
  5. Step 5: Solve for x
    x = 111,244.18/479.43
  6. Step 6: Final answer
    x = 232.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.