Home / 226.31-385.69

Finding the Third Proportional to 226.31 and 385.69

Calculator

Solution

The third proportional to 226.31 and 385.69 is: 657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.31 : 385.69 = 385.69 : x
  2. Step 2: Convert to fraction form
    226.31/385.69 = 385.69/x
  3. Step 3: Cross multiply
    226.31x = 385.69 × 385.69
  4. Step 4: Simplify right side
    226.31x = 148,754.85
  5. Step 5: Solve for x
    x = 148,754.85/226.31
  6. Step 6: Final answer
    x = 657.30

Related Problems

Find third proportional to 113.16 and 192.84
Half scale
Find third proportional to 452.63 and 771.38
Double scale
Find third proportional to 228 and 389
Similar ratio
Find third proportional to 339.47 and 578.53
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.