Home / 198,811-427,286

Finding the Third Proportional to 198,811 and 427,286

Calculator

Solution

The third proportional to 198,811 and 427,286 is: 918,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,811 : 427,286 = 427,286 : x
  2. Step 2: Convert to fraction form
    198,811/427,286 = 427,286/x
  3. Step 3: Cross multiply
    198,811x = 427,286 × 427,286
  4. Step 4: Simplify right side
    198,811x = 182,573,325,796
  5. Step 5: Solve for x
    x = 182,573,325,796/198,811
  6. Step 6: Final answer
    x = 918,326.08

Related Problems

Find third proportional to 99,405.50 and 213,643
Half scale
Find third proportional to 397,622 and 854,572
Double scale
Find third proportional to 198,813 and 427,290
Similar ratio
Find third proportional to 298,216.50 and 640,929
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.