Home / 221,733.59-305,901.75-163,729.31

Finding the Fourth Proportional to 221,733.59, 305,901.75 and 163,729.31

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Solution

The fourth proportional to 221,733.59, 305,901.75 and 163,729.31 is: 225,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,733.59 : 305,901.75 = 163,729.31 : x
  2. Step 2: Convert to fraction form
    221,733.59/305,901.75 = 163,729.31/x
  3. Step 3: Cross multiply
    221,733.59x = 305,901.75 × 163,729.31
  4. Step 4: Simplify right side
    221,733.59x = 50,085,082,455.29
  5. Step 5: Solve for x
    x = 50,085,082,455.29/221,733.59
  6. Step 6: Final answer
    x = 225,879.55

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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.