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Finding the Fourth Proportional to 219,896.94, 329,877.81 and 79,622.76

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Solution

The fourth proportional to 219,896.94, 329,877.81 and 79,622.76 is: 119,445.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,896.94 : 329,877.81 = 79,622.76 : x
  2. Step 2: Convert to fraction form
    219,896.94/329,877.81 = 79,622.76/x
  3. Step 3: Cross multiply
    219,896.94x = 329,877.81 × 79,622.76
  4. Step 4: Simplify right side
    219,896.94x = 26,265,781,694.96
  5. Step 5: Solve for x
    x = 26,265,781,694.96/219,896.94
  6. Step 6: Final answer
    x = 119,445.87

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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.