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Finding the Fourth Proportional to 482.97, 666.35 and 273.12

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Solution

The fourth proportional to 482.97, 666.35 and 273.12 is: 376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.97 : 666.35 = 273.12 : x
  2. Step 2: Convert to fraction form
    482.97/666.35 = 273.12/x
  3. Step 3: Cross multiply
    482.97x = 666.35 × 273.12
  4. Step 4: Simplify right side
    482.97x = 181,992.15
  5. Step 5: Solve for x
    x = 181,992.15/482.97
  6. Step 6: Final answer
    x = 376.82

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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.