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Finding the Fourth Proportional to 221,435.94, 331,949.52 and 88,284

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Solution

The fourth proportional to 221,435.94, 331,949.52 and 88,284 is: 132,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,435.94 : 331,949.52 = 88,284 : x
  2. Step 2: Convert to fraction form
    221,435.94/331,949.52 = 88,284/x
  3. Step 3: Cross multiply
    221,435.94x = 331,949.52 × 88,284
  4. Step 4: Simplify right side
    221,435.94x = 29,305,831,423.68
  5. Step 5: Solve for x
    x = 29,305,831,423.68/221,435.94
  6. Step 6: Final answer
    x = 132,344.51

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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.