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Finding the Fourth Proportional to 443.93, 667.17 and 298.16

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Solution

The fourth proportional to 443.93, 667.17 and 298.16 is: 448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.93 : 667.17 = 298.16 : x
  2. Step 2: Convert to fraction form
    443.93/667.17 = 298.16/x
  3. Step 3: Cross multiply
    443.93x = 667.17 × 298.16
  4. Step 4: Simplify right side
    443.93x = 198,923.41
  5. Step 5: Solve for x
    x = 198,923.41/443.93
  6. Step 6: Final answer
    x = 448.10

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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.