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Finding the Fourth Proportional to 445.86, 669.03 and 299.25

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Solution

The fourth proportional to 445.86, 669.03 and 299.25 is: 449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.86 : 669.03 = 299.25 : x
  2. Step 2: Convert to fraction form
    445.86/669.03 = 299.25/x
  3. Step 3: Cross multiply
    445.86x = 669.03 × 299.25
  4. Step 4: Simplify right side
    445.86x = 200,206.11
  5. Step 5: Solve for x
    x = 200,206.11/445.86
  6. Step 6: Final answer
    x = 449.03

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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.