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Finding the Fourth Proportional to 221,099.44, 331,371.32 and 119,893.72

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Solution

The fourth proportional to 221,099.44, 331,371.32 and 119,893.72 is: 179,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,099.44 : 331,371.32 = 119,893.72 : x
  2. Step 2: Convert to fraction form
    221,099.44/331,371.32 = 119,893.72/x
  3. Step 3: Cross multiply
    221,099.44x = 331,371.32 × 119,893.72
  4. Step 4: Simplify right side
    221,099.44x = 39,729,340,256.11
  5. Step 5: Solve for x
    x = 39,729,340,256.11/221,099.44
  6. Step 6: Final answer
    x = 179,689.92

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1.5x scale

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.