Home / 127,910-198,609

Finding the Third Proportional to 127,910 and 198,609

Calculator

Solution

The third proportional to 127,910 and 198,609 is: 308,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,910 : 198,609 = 198,609 : x
  2. Step 2: Convert to fraction form
    127,910/198,609 = 198,609/x
  3. Step 3: Cross multiply
    127,910x = 198,609 × 198,609
  4. Step 4: Simplify right side
    127,910x = 39,445,534,881
  5. Step 5: Solve for x
    x = 39,445,534,881/127,910
  6. Step 6: Final answer
    x = 308,385.07

Related Problems

Find third proportional to 63,955 and 99,304.50
Half scale
Find third proportional to 255,820 and 397,218
Double scale
Find third proportional to 127,912 and 198,612
Similar ratio
Find third proportional to 191,865 and 297,913.50
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.