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Finding the Fourth Proportional to 479.41, 718.93 and 154.69

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Solution

The fourth proportional to 479.41, 718.93 and 154.69 is: 231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.41 : 718.93 = 154.69 : x
  2. Step 2: Convert to fraction form
    479.41/718.93 = 154.69/x
  3. Step 3: Cross multiply
    479.41x = 718.93 × 154.69
  4. Step 4: Simplify right side
    479.41x = 111,209.68
  5. Step 5: Solve for x
    x = 111,209.68/479.41
  6. Step 6: Final answer
    x = 231.97

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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.