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Finding the Fourth Proportional to 270,242.73, 372,918.78 and 149,376.81

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Solution

The fourth proportional to 270,242.73, 372,918.78 and 149,376.81 is: 206,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,242.73 : 372,918.78 = 149,376.81 : x
  2. Step 2: Convert to fraction form
    270,242.73/372,918.78 = 149,376.81/x
  3. Step 3: Cross multiply
    270,242.73x = 372,918.78 × 149,376.81
  4. Step 4: Simplify right side
    270,242.73x = 55,705,417,745.49
  5. Step 5: Solve for x
    x = 55,705,417,745.49/270,242.73
  6. Step 6: Final answer
    x = 206,131.05

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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.