Home / 259,723.80-389,585.70-231,730.20

Finding the Fourth Proportional to 259,723.80, 389,585.70 and 231,730.20

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Solution

The fourth proportional to 259,723.80, 389,585.70 and 231,730.20 is: 347,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,723.80 : 389,585.70 = 231,730.20 : x
  2. Step 2: Convert to fraction form
    259,723.80/389,585.70 = 231,730.20/x
  3. Step 3: Cross multiply
    259,723.80x = 389,585.70 × 231,730.20
  4. Step 4: Simplify right side
    259,723.80x = 90,278,772,178.14
  5. Step 5: Solve for x
    x = 90,278,772,178.14/259,723.80
  6. Step 6: Final answer
    x = 347,595.30

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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.