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Finding the Fourth Proportional to 219,961.20, 329,164.20 and 149,977.20

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Solution

The fourth proportional to 219,961.20, 329,164.20 and 149,977.20 is: 224,435.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,961.20 : 329,164.20 = 149,977.20 : x
  2. Step 2: Convert to fraction form
    219,961.20/329,164.20 = 149,977.20/x
  3. Step 3: Cross multiply
    219,961.20x = 329,164.20 × 149,977.20
  4. Step 4: Simplify right side
    219,961.20x = 49,367,125,056.24
  5. Step 5: Solve for x
    x = 49,367,125,056.24/219,961.20
  6. Step 6: Final answer
    x = 224,435.61

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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.