Home / 221,236.75-331,826.86-71,461.50

Finding the Fourth Proportional to 221,236.75, 331,826.86 and 71,461.50

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Solution

The fourth proportional to 221,236.75, 331,826.86 and 71,461.50 is: 107,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,236.75 : 331,826.86 = 71,461.50 : x
  2. Step 2: Convert to fraction form
    221,236.75/331,826.86 = 71,461.50/x
  3. Step 3: Cross multiply
    221,236.75x = 331,826.86 × 71,461.50
  4. Step 4: Simplify right side
    221,236.75x = 23,712,845,155.89
  5. Step 5: Solve for x
    x = 23,712,845,155.89/221,236.75
  6. Step 6: Final answer
    x = 107,183.12

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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.