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Finding the Fourth Proportional to 273.50, 377.41 and 155.47

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Solution

The fourth proportional to 273.50, 377.41 and 155.47 is: 214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.50 : 377.41 = 155.47 : x
  2. Step 2: Convert to fraction form
    273.50/377.41 = 155.47/x
  3. Step 3: Cross multiply
    273.50x = 377.41 × 155.47
  4. Step 4: Simplify right side
    273.50x = 58,675.60
  5. Step 5: Solve for x
    x = 58,675.60/273.50
  6. Step 6: Final answer
    x = 214.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.