Home / 131,528-213,690

Finding the Third Proportional to 131,528 and 213,690

Calculator

Solution

The third proportional to 131,528 and 213,690 is: 347,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,528 : 213,690 = 213,690 : x
  2. Step 2: Convert to fraction form
    131,528/213,690 = 213,690/x
  3. Step 3: Cross multiply
    131,528x = 213,690 × 213,690
  4. Step 4: Simplify right side
    131,528x = 45,663,416,100
  5. Step 5: Solve for x
    x = 45,663,416,100/131,528
  6. Step 6: Final answer
    x = 347,176.39

Related Problems

Find third proportional to 65,764 and 106,845
Half scale
Find third proportional to 263,056 and 427,380
Double scale
Find third proportional to 131,530 and 213,693
Similar ratio
Find third proportional to 197,292 and 320,535
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.