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Finding the Fourth Proportional to 220,889.04, 330,835.08 and 102,311.28

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Solution

The fourth proportional to 220,889.04, 330,835.08 and 102,311.28 is: 153,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,889.04 : 330,835.08 = 102,311.28 : x
  2. Step 2: Convert to fraction form
    220,889.04/330,835.08 = 102,311.28/x
  3. Step 3: Cross multiply
    220,889.04x = 330,835.08 × 102,311.28
  4. Step 4: Simplify right side
    220,889.04x = 33,848,160,503.70
  5. Step 5: Solve for x
    x = 33,848,160,503.70/220,889.04
  6. Step 6: Final answer
    x = 153,236.03

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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.