Home / 221,028.41-331,607.31-71,265.68

Finding the Fourth Proportional to 221,028.41, 331,607.31 and 71,265.68

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Solution

The fourth proportional to 221,028.41, 331,607.31 and 71,265.68 is: 106,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,028.41 : 331,607.31 = 71,265.68 : x
  2. Step 2: Convert to fraction form
    221,028.41/331,607.31 = 71,265.68/x
  3. Step 3: Cross multiply
    221,028.41x = 331,607.31 × 71,265.68
  4. Step 4: Simplify right side
    221,028.41x = 23,632,220,440.12
  5. Step 5: Solve for x
    x = 23,632,220,440.12/221,028.41
  6. Step 6: Final answer
    x = 106,919.38

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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.