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Finding the Fourth Proportional to 448.07, 618.33 and 271.04

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Solution

The fourth proportional to 448.07, 618.33 and 271.04 is: 374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.07 : 618.33 = 271.04 : x
  2. Step 2: Convert to fraction form
    448.07/618.33 = 271.04/x
  3. Step 3: Cross multiply
    448.07x = 618.33 × 271.04
  4. Step 4: Simplify right side
    448.07x = 167,589.07
  5. Step 5: Solve for x
    x = 167,589.07/448.07
  6. Step 6: Final answer
    x = 374.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.