Home / 259,729.07-389,833.08-131,735.19

Finding the Fourth Proportional to 259,729.07, 389,833.08 and 131,735.19

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Solution

The fourth proportional to 259,729.07, 389,833.08 and 131,735.19 is: 197,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,729.07 : 389,833.08 = 131,735.19 : x
  2. Step 2: Convert to fraction form
    259,729.07/389,833.08 = 131,735.19/x
  3. Step 3: Cross multiply
    259,729.07x = 389,833.08 × 131,735.19
  4. Step 4: Simplify right side
    259,729.07x = 51,354,734,862.09
  5. Step 5: Solve for x
    x = 51,354,734,862.09/259,729.07
  6. Step 6: Final answer
    x = 197,724.25

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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.