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Finding the Fourth Proportional to 448.24, 618.62 and 273.58

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Solution

The fourth proportional to 448.24, 618.62 and 273.58 is: 377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.24 : 618.62 = 273.58 : x
  2. Step 2: Convert to fraction form
    448.24/618.62 = 273.58/x
  3. Step 3: Cross multiply
    448.24x = 618.62 × 273.58
  4. Step 4: Simplify right side
    448.24x = 169,242.06
  5. Step 5: Solve for x
    x = 169,242.06/448.24
  6. Step 6: Final answer
    x = 377.57

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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.