Home / 259,882.21-389,856.12-91,362.93

Finding the Fourth Proportional to 259,882.21, 389,856.12 and 91,362.93

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Solution

The fourth proportional to 259,882.21, 389,856.12 and 91,362.93 is: 137,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,882.21 : 389,856.12 = 91,362.93 : x
  2. Step 2: Convert to fraction form
    259,882.21/389,856.12 = 91,362.93/x
  3. Step 3: Cross multiply
    259,882.21x = 389,856.12 × 91,362.93
  4. Step 4: Simplify right side
    259,882.21x = 35,618,397,401.63
  5. Step 5: Solve for x
    x = 35,618,397,401.63/259,882.21
  6. Step 6: Final answer
    x = 137,055.93

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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.