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Finding the Fourth Proportional to 225,958.57, 311,850.48 and 130,465.11

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Solution

The fourth proportional to 225,958.57, 311,850.48 and 130,465.11 is: 180,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,958.57 : 311,850.48 = 130,465.11 : x
  2. Step 2: Convert to fraction form
    225,958.57/311,850.48 = 130,465.11/x
  3. Step 3: Cross multiply
    225,958.57x = 311,850.48 × 130,465.11
  4. Step 4: Simplify right side
    225,958.57x = 40,685,607,176.75
  5. Step 5: Solve for x
    x = 40,685,607,176.75/225,958.57
  6. Step 6: Final answer
    x = 180,057.82

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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.