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Finding the Fourth Proportional to 445.89, 668.83 and 116.83

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Solution

The fourth proportional to 445.89, 668.83 and 116.83 is: 175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.89 : 668.83 = 116.83 : x
  2. Step 2: Convert to fraction form
    445.89/668.83 = 116.83/x
  3. Step 3: Cross multiply
    445.89x = 668.83 × 116.83
  4. Step 4: Simplify right side
    445.89x = 78,136.06
  5. Step 5: Solve for x
    x = 78,136.06/445.89
  6. Step 6: Final answer
    x = 175.24

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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.