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Finding the Fourth Proportional to 448.15, 671.15 and 264.99

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Solution

The fourth proportional to 448.15, 671.15 and 264.99 is: 396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.15 : 671.15 = 264.99 : x
  2. Step 2: Convert to fraction form
    448.15/671.15 = 264.99/x
  3. Step 3: Cross multiply
    448.15x = 671.15 × 264.99
  4. Step 4: Simplify right side
    448.15x = 177,847.44
  5. Step 5: Solve for x
    x = 177,847.44/448.15
  6. Step 6: Final answer
    x = 396.85

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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.