Home / 221,074.41-331,487.05-76,914.12

Finding the Fourth Proportional to 221,074.41, 331,487.05 and 76,914.12

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Solution

The fourth proportional to 221,074.41, 331,487.05 and 76,914.12 is: 115,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,074.41 : 331,487.05 = 76,914.12 : x
  2. Step 2: Convert to fraction form
    221,074.41/331,487.05 = 76,914.12/x
  3. Step 3: Cross multiply
    221,074.41x = 331,487.05 × 76,914.12
  4. Step 4: Simplify right side
    221,074.41x = 25,496,033,928.32
  5. Step 5: Solve for x
    x = 25,496,033,928.32/221,074.41
  6. Step 6: Final answer
    x = 115,327.84

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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.