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Finding the Fourth Proportional to 483.18, 666.73 and 273.39

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Solution

The fourth proportional to 483.18, 666.73 and 273.39 is: 377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.18 : 666.73 = 273.39 : x
  2. Step 2: Convert to fraction form
    483.18/666.73 = 273.39/x
  3. Step 3: Cross multiply
    483.18x = 666.73 × 273.39
  4. Step 4: Simplify right side
    483.18x = 182,279.63
  5. Step 5: Solve for x
    x = 182,279.63/483.18
  6. Step 6: Final answer
    x = 377.25

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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.