Home / 220,852.30-331,364.85-80,625.10

Finding the Fourth Proportional to 220,852.30, 331,364.85 and 80,625.10

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Solution

The fourth proportional to 220,852.30, 331,364.85 and 80,625.10 is: 120,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,852.30 : 331,364.85 = 80,625.10 : x
  2. Step 2: Convert to fraction form
    220,852.30/331,364.85 = 80,625.10/x
  3. Step 3: Cross multiply
    220,852.30x = 331,364.85 × 80,625.10
  4. Step 4: Simplify right side
    220,852.30x = 26,716,324,167.74
  5. Step 5: Solve for x
    x = 26,716,324,167.74/220,852.30
  6. Step 6: Final answer
    x = 120,969.19

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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.