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Finding the Fourth Proportional to 219,965.88, 329,800.80 and 101,571.96

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Solution

The fourth proportional to 219,965.88, 329,800.80 and 101,571.96 is: 152,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,965.88 : 329,800.80 = 101,571.96 : x
  2. Step 2: Convert to fraction form
    219,965.88/329,800.80 = 101,571.96/x
  3. Step 3: Cross multiply
    219,965.88x = 329,800.80 × 101,571.96
  4. Step 4: Simplify right side
    219,965.88x = 33,498,513,665.57
  5. Step 5: Solve for x
    x = 33,498,513,665.57/219,965.88
  6. Step 6: Final answer
    x = 152,289.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.