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Finding the Fourth Proportional to 220,303.72, 330,012.06 and 101,811.88

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Solution

The fourth proportional to 220,303.72, 330,012.06 and 101,811.88 is: 152,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,303.72 : 330,012.06 = 101,811.88 : x
  2. Step 2: Convert to fraction form
    220,303.72/330,012.06 = 101,811.88/x
  3. Step 3: Cross multiply
    220,303.72x = 330,012.06 × 101,811.88
  4. Step 4: Simplify right side
    220,303.72x = 33,599,148,251.27
  5. Step 5: Solve for x
    x = 33,599,148,251.27/220,303.72
  6. Step 6: Final answer
    x = 152,512.85

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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.