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Finding the Fourth Proportional to 221,124, 331,737.84 and 73,380

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Solution

The fourth proportional to 221,124, 331,737.84 and 73,380 is: 110,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,124 : 331,737.84 = 73,380 : x
  2. Step 2: Convert to fraction form
    221,124/331,737.84 = 73,380/x
  3. Step 3: Cross multiply
    221,124x = 331,737.84 × 73,380
  4. Step 4: Simplify right side
    221,124x = 24,342,922,699.20
  5. Step 5: Solve for x
    x = 24,342,922,699.20/221,124
  6. Step 6: Final answer
    x = 110,087.20

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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.