Home / 221,432.80-331,274.40-192,175.60

Finding the Fourth Proportional to 221,432.80, 331,274.40 and 192,175.60

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Solution

The fourth proportional to 221,432.80, 331,274.40 and 192,175.60 is: 287,504.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432.80 : 331,274.40 = 192,175.60 : x
  2. Step 2: Convert to fraction form
    221,432.80/331,274.40 = 192,175.60/x
  3. Step 3: Cross multiply
    221,432.80x = 331,274.40 × 192,175.60
  4. Step 4: Simplify right side
    221,432.80x = 63,662,856,584.64
  5. Step 5: Solve for x
    x = 63,662,856,584.64/221,432.80
  6. Step 6: Final answer
    x = 287,504.18

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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.