Home / 202,080-280,975

Finding the Third Proportional to 202,080 and 280,975

Calculator

Solution

The third proportional to 202,080 and 280,975 is: 390,671.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,080 : 280,975 = 280,975 : x
  2. Step 2: Convert to fraction form
    202,080/280,975 = 280,975/x
  3. Step 3: Cross multiply
    202,080x = 280,975 × 280,975
  4. Step 4: Simplify right side
    202,080x = 78,946,950,625
  5. Step 5: Solve for x
    x = 78,946,950,625/202,080
  6. Step 6: Final answer
    x = 390,671.77

Related Problems

Find third proportional to 101,040 and 140,487.50
Half scale
Find third proportional to 404,160 and 561,950
Double scale
Find third proportional to 202,082 and 280,978
Similar ratio
Find third proportional to 303,120 and 421,462.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.