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Finding the Fourth Proportional to 234,418.62, 323,496.36 and 126,990.72

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Solution

The fourth proportional to 234,418.62, 323,496.36 and 126,990.72 is: 175,246.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,418.62 : 323,496.36 = 126,990.72 : x
  2. Step 2: Convert to fraction form
    234,418.62/323,496.36 = 126,990.72/x
  3. Step 3: Cross multiply
    234,418.62x = 323,496.36 × 126,990.72
  4. Step 4: Simplify right side
    234,418.62x = 41,081,035,673.78
  5. Step 5: Solve for x
    x = 41,081,035,673.78/234,418.62
  6. Step 6: Final answer
    x = 175,246.47

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1.5x scale

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.