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Finding the Fourth Proportional to 483.16, 666.78 and 273.36

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Solution

The fourth proportional to 483.16, 666.78 and 273.36 is: 377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.16 : 666.78 = 273.36 : x
  2. Step 2: Convert to fraction form
    483.16/666.78 = 273.36/x
  3. Step 3: Cross multiply
    483.16x = 666.78 × 273.36
  4. Step 4: Simplify right side
    483.16x = 182,270.98
  5. Step 5: Solve for x
    x = 182,270.98/483.16
  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.