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Finding the Fourth Proportional to 273.70, 376.13 and 261.01

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Solution

The fourth proportional to 273.70, 376.13 and 261.01 is: 358.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.70 : 376.13 = 261.01 : x
  2. Step 2: Convert to fraction form
    273.70/376.13 = 261.01/x
  3. Step 3: Cross multiply
    273.70x = 376.13 × 261.01
  4. Step 4: Simplify right side
    273.70x = 98,173.69
  5. Step 5: Solve for x
    x = 98,173.69/273.70
  6. Step 6: Final answer
    x = 358.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.