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Finding the Fourth Proportional to 482.81, 666.30 and 273.02

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Solution

The fourth proportional to 482.81, 666.30 and 273.02 is: 376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.81 : 666.30 = 273.02 : x
  2. Step 2: Convert to fraction form
    482.81/666.30 = 273.02/x
  3. Step 3: Cross multiply
    482.81x = 666.30 × 273.02
  4. Step 4: Simplify right side
    482.81x = 181,909.89
  5. Step 5: Solve for x
    x = 181,909.89/482.81
  6. Step 6: Final answer
    x = 376.78

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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.