Home / 133,483-206,615

Finding the Third Proportional to 133,483 and 206,615

Calculator

Solution

The third proportional to 133,483 and 206,615 is: 319,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,483 : 206,615 = 206,615 : x
  2. Step 2: Convert to fraction form
    133,483/206,615 = 206,615/x
  3. Step 3: Cross multiply
    133,483x = 206,615 × 206,615
  4. Step 4: Simplify right side
    133,483x = 42,689,758,225
  5. Step 5: Solve for x
    x = 42,689,758,225/133,483
  6. Step 6: Final answer
    x = 319,814.20

Related Problems

Find third proportional to 66,741.50 and 103,307.50
Half scale
Find third proportional to 266,966 and 413,230
Double scale
Find third proportional to 133,485 and 206,618
Similar ratio
Find third proportional to 200,224.50 and 309,922.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.