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Finding the Fourth Proportional to 270,297.09, 372,981.42 and 149,418.90

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Solution

The fourth proportional to 270,297.09, 372,981.42 and 149,418.90 is: 206,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,297.09 : 372,981.42 = 149,418.90 : x
  2. Step 2: Convert to fraction form
    270,297.09/372,981.42 = 149,418.90/x
  3. Step 3: Cross multiply
    270,297.09x = 372,981.42 × 149,418.90
  4. Step 4: Simplify right side
    270,297.09x = 55,730,473,496.84
  5. Step 5: Solve for x
    x = 55,730,473,496.84/270,297.09
  6. Step 6: Final answer
    x = 206,182.29

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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.