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Finding the Fourth Proportional to 273.07, 376.82 and 155.04

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Solution

The fourth proportional to 273.07, 376.82 and 155.04 is: 213.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.07 : 376.82 = 155.04 : x
  2. Step 2: Convert to fraction form
    273.07/376.82 = 155.04/x
  3. Step 3: Cross multiply
    273.07x = 376.82 × 155.04
  4. Step 4: Simplify right side
    273.07x = 58,421.40
  5. Step 5: Solve for x
    x = 58,421.40/273.07
  6. Step 6: Final answer
    x = 213.94

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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.