Home / 221,318.88-305,399.54-125,806.92

Finding the Fourth Proportional to 221,318.88, 305,399.54 and 125,806.92

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Solution

The fourth proportional to 221,318.88, 305,399.54 and 125,806.92 is: 173,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,318.88 : 305,399.54 = 125,806.92 : x
  2. Step 2: Convert to fraction form
    221,318.88/305,399.54 = 125,806.92/x
  3. Step 3: Cross multiply
    221,318.88x = 305,399.54 × 125,806.92
  4. Step 4: Simplify right side
    221,318.88x = 38,421,375,496.82
  5. Step 5: Solve for x
    x = 38,421,375,496.82/221,318.88
  6. Step 6: Final answer
    x = 173,601.89

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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.