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Finding the Fourth Proportional to 219,370.20, 328,958.10 and 101,077.80

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Solution

The fourth proportional to 219,370.20, 328,958.10 and 101,077.80 is: 151,571.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,370.20 : 328,958.10 = 101,077.80 : x
  2. Step 2: Convert to fraction form
    219,370.20/328,958.10 = 101,077.80/x
  3. Step 3: Cross multiply
    219,370.20x = 328,958.10 × 101,077.80
  4. Step 4: Simplify right side
    219,370.20x = 33,250,361,040.18
  5. Step 5: Solve for x
    x = 33,250,361,040.18/219,370.20
  6. Step 6: Final answer
    x = 151,571.91

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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.