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Finding the Fourth Proportional to 225,971.92, 311,851.04 and 135,342.64

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Solution

The fourth proportional to 225,971.92, 311,851.04 and 135,342.64 is: 186,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,971.92 : 311,851.04 = 135,342.64 : x
  2. Step 2: Convert to fraction form
    225,971.92/311,851.04 = 135,342.64/x
  3. Step 3: Cross multiply
    225,971.92x = 311,851.04 × 135,342.64
  4. Step 4: Simplify right side
    225,971.92x = 42,206,743,040.35
  5. Step 5: Solve for x
    x = 42,206,743,040.35/225,971.92
  6. Step 6: Final answer
    x = 186,778.71

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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.