Home / 221,431.28-332,199.65-71,671.60

Finding the Fourth Proportional to 221,431.28, 332,199.65 and 71,671.60

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Solution

The fourth proportional to 221,431.28, 332,199.65 and 71,671.60 is: 107,524.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,431.28 : 332,199.65 = 71,671.60 : x
  2. Step 2: Convert to fraction form
    221,431.28/332,199.65 = 71,671.60/x
  3. Step 3: Cross multiply
    221,431.28x = 332,199.65 × 71,671.60
  4. Step 4: Simplify right side
    221,431.28x = 23,809,279,783.62
  5. Step 5: Solve for x
    x = 23,809,279,783.62/221,431.28
  6. Step 6: Final answer
    x = 107,524.46

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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.