Home / 221,045.45-331,632.86-71,282.73

Finding the Fourth Proportional to 221,045.45, 331,632.86 and 71,282.73

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Solution

The fourth proportional to 221,045.45, 331,632.86 and 71,282.73 is: 106,944.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,045.45 : 331,632.86 = 71,282.73 : x
  2. Step 2: Convert to fraction form
    221,045.45/331,632.86 = 71,282.73/x
  3. Step 3: Cross multiply
    221,045.45x = 331,632.86 × 71,282.73
  4. Step 4: Simplify right side
    221,045.45x = 23,639,695,262.09
  5. Step 5: Solve for x
    x = 23,639,695,262.09/221,045.45
  6. Step 6: Final answer
    x = 106,944.96

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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.