Home / 431,684.25-647,157.09-165,635.70

Finding the Fourth Proportional to 431,684.25, 647,157.09 and 165,635.70

Calculator

Solution

The fourth proportional to 431,684.25, 647,157.09 and 165,635.70 is: 248,311.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,684.25 : 647,157.09 = 165,635.70 : x
  2. Step 2: Convert to fraction form
    431,684.25/647,157.09 = 165,635.70/x
  3. Step 3: Cross multiply
    431,684.25x = 647,157.09 × 165,635.70
  4. Step 4: Simplify right side
    431,684.25x = 107,192,317,612.11
  5. Step 5: Solve for x
    x = 107,192,317,612.11/431,684.25
  6. Step 6: Final answer
    x = 248,311.86

Related Problems

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.