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Finding the Fourth Proportional to 273.90, 407.26 and 262.97

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Solution

The fourth proportional to 273.90, 407.26 and 262.97 is: 391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.90 : 407.26 = 262.97 : x
  2. Step 2: Convert to fraction form
    273.90/407.26 = 262.97/x
  3. Step 3: Cross multiply
    273.90x = 407.26 × 262.97
  4. Step 4: Simplify right side
    273.90x = 107,097.16
  5. Step 5: Solve for x
    x = 107,097.16/273.90
  6. Step 6: Final answer
    x = 391.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.