Home / 221,100.12-331,648.80-63,328.84

Finding the Fourth Proportional to 221,100.12, 331,648.80 and 63,328.84

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Solution

The fourth proportional to 221,100.12, 331,648.80 and 63,328.84 is: 94,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,100.12 : 331,648.80 = 63,328.84 : x
  2. Step 2: Convert to fraction form
    221,100.12/331,648.80 = 63,328.84/x
  3. Step 3: Cross multiply
    221,100.12x = 331,648.80 × 63,328.84
  4. Step 4: Simplify right side
    221,100.12x = 21,002,933,791.39
  5. Step 5: Solve for x
    x = 21,002,933,791.39/221,100.12
  6. Step 6: Final answer
    x = 94,992.86

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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.