Home / 187,031-398,493

Finding the Third Proportional to 187,031 and 398,493

Calculator

Solution

The third proportional to 187,031 and 398,493 is: 849,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,031 : 398,493 = 398,493 : x
  2. Step 2: Convert to fraction form
    187,031/398,493 = 398,493/x
  3. Step 3: Cross multiply
    187,031x = 398,493 × 398,493
  4. Step 4: Simplify right side
    187,031x = 158,796,671,049
  5. Step 5: Solve for x
    x = 158,796,671,049/187,031
  6. Step 6: Final answer
    x = 849,039.31

Related Problems

Find third proportional to 93,515.50 and 199,246.50
Half scale
Find third proportional to 374,062 and 796,986
Double scale
Find third proportional to 187,033 and 398,497
Similar ratio
Find third proportional to 280,546.50 and 597,739.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.