Home / 240,245.07-331,571.12-138,268.46

Finding the Fourth Proportional to 240,245.07, 331,571.12 and 138,268.46

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Solution

The fourth proportional to 240,245.07, 331,571.12 and 138,268.46 is: 190,829.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,245.07 : 331,571.12 = 138,268.46 : x
  2. Step 2: Convert to fraction form
    240,245.07/331,571.12 = 138,268.46/x
  3. Step 3: Cross multiply
    240,245.07x = 331,571.12 × 138,268.46
  4. Step 4: Simplify right side
    240,245.07x = 45,845,825,793.68
  5. Step 5: Solve for x
    x = 45,845,825,793.68/240,245.07
  6. Step 6: Final answer
    x = 190,829.41

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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.