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Finding the Fourth Proportional to 225,291.92, 310,881.78 and 134,629.88

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Solution

The fourth proportional to 225,291.92, 310,881.78 and 134,629.88 is: 185,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,291.92 : 310,881.78 = 134,629.88 : x
  2. Step 2: Convert to fraction form
    225,291.92/310,881.78 = 134,629.88/x
  3. Step 3: Cross multiply
    225,291.92x = 310,881.78 × 134,629.88
  4. Step 4: Simplify right side
    225,291.92x = 41,853,976,735.59
  5. Step 5: Solve for x
    x = 41,853,976,735.59/225,291.92
  6. Step 6: Final answer
    x = 185,776.64

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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.