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Finding the Fourth Proportional to 270,073.18, 372,695.79 and 149,219.74

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Solution

The fourth proportional to 270,073.18, 372,695.79 and 149,219.74 is: 205,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,073.18 : 372,695.79 = 149,219.74 : x
  2. Step 2: Convert to fraction form
    270,073.18/372,695.79 = 149,219.74/x
  3. Step 3: Cross multiply
    270,073.18x = 372,695.79 × 149,219.74
  4. Step 4: Simplify right side
    270,073.18x = 55,613,568,882.89
  5. Step 5: Solve for x
    x = 55,613,568,882.89/270,073.18
  6. Step 6: Final answer
    x = 205,920.37

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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.