Home / 218,091.24-300,921.37-127,429.68

Finding the Fourth Proportional to 218,091.24, 300,921.37 and 127,429.68

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Solution

The fourth proportional to 218,091.24, 300,921.37 and 127,429.68 is: 175,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,091.24 : 300,921.37 = 127,429.68 : x
  2. Step 2: Convert to fraction form
    218,091.24/300,921.37 = 127,429.68/x
  3. Step 3: Cross multiply
    218,091.24x = 300,921.37 × 127,429.68
  4. Step 4: Simplify right side
    218,091.24x = 38,346,313,884.26
  5. Step 5: Solve for x
    x = 38,346,313,884.26/218,091.24
  6. Step 6: Final answer
    x = 175,826.93

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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.