Home / 221,257.35-331,887.78-88,171.47

Finding the Fourth Proportional to 221,257.35, 331,887.78 and 88,171.47

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Solution

The fourth proportional to 221,257.35, 331,887.78 and 88,171.47 is: 132,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,257.35 : 331,887.78 = 88,171.47 : x
  2. Step 2: Convert to fraction form
    221,257.35/331,887.78 = 88,171.47/x
  3. Step 3: Cross multiply
    221,257.35x = 331,887.78 × 88,171.47
  4. Step 4: Simplify right side
    221,257.35x = 29,263,033,437.64
  5. Step 5: Solve for x
    x = 29,263,033,437.64/221,257.35
  6. Step 6: Final answer
    x = 132,257.90

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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.