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Finding the Fourth Proportional to 273.47, 377.39 and 149.13

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Solution

The fourth proportional to 273.47, 377.39 and 149.13 is: 205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.47 : 377.39 = 149.13 : x
  2. Step 2: Convert to fraction form
    273.47/377.39 = 149.13/x
  3. Step 3: Cross multiply
    273.47x = 377.39 × 149.13
  4. Step 4: Simplify right side
    273.47x = 56,280.17
  5. Step 5: Solve for x
    x = 56,280.17/273.47
  6. Step 6: Final answer
    x = 205.80

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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.