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Finding the Fourth Proportional to 228,850.68, 315,832.64 and 126,908.11

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Solution

The fourth proportional to 228,850.68, 315,832.64 and 126,908.11 is: 175,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,850.68 : 315,832.64 = 126,908.11 : x
  2. Step 2: Convert to fraction form
    228,850.68/315,832.64 = 126,908.11/x
  3. Step 3: Cross multiply
    228,850.68x = 315,832.64 × 126,908.11
  4. Step 4: Simplify right side
    228,850.68x = 40,081,723,418.71
  5. Step 5: Solve for x
    x = 40,081,723,418.71/228,850.68
  6. Step 6: Final answer
    x = 175,143.56

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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.