Home / 129,386-193,279

Finding the Third Proportional to 129,386 and 193,279

Calculator

Solution

The third proportional to 129,386 and 193,279 is: 288,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,386 : 193,279 = 193,279 : x
  2. Step 2: Convert to fraction form
    129,386/193,279 = 193,279/x
  3. Step 3: Cross multiply
    129,386x = 193,279 × 193,279
  4. Step 4: Simplify right side
    129,386x = 37,356,771,841
  5. Step 5: Solve for x
    x = 37,356,771,841/129,386
  6. Step 6: Final answer
    x = 288,723.45

Related Problems

Find third proportional to 64,693 and 96,639.50
Half scale
Find third proportional to 258,772 and 386,558
Double scale
Find third proportional to 129,388 and 193,282
Similar ratio
Find third proportional to 194,079 and 289,918.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.