Home / 225,621.60-311,352.48-123,643.68

Finding the Fourth Proportional to 225,621.60, 311,352.48 and 123,643.68

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Solution

The fourth proportional to 225,621.60, 311,352.48 and 123,643.68 is: 170,625.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,621.60 : 311,352.48 = 123,643.68 : x
  2. Step 2: Convert to fraction form
    225,621.60/311,352.48 = 123,643.68/x
  3. Step 3: Cross multiply
    225,621.60x = 311,352.48 × 123,643.68
  4. Step 4: Simplify right side
    225,621.60x = 38,496,766,404.33
  5. Step 5: Solve for x
    x = 38,496,766,404.33/225,621.60
  6. Step 6: Final answer
    x = 170,625.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.