Home / 161,820-251,250

Finding the Third Proportional to 161,820 and 251,250

Calculator

Solution

The third proportional to 161,820 and 251,250 is: 390,103.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,820 : 251,250 = 251,250 : x
  2. Step 2: Convert to fraction form
    161,820/251,250 = 251,250/x
  3. Step 3: Cross multiply
    161,820x = 251,250 × 251,250
  4. Step 4: Simplify right side
    161,820x = 63,126,562,500
  5. Step 5: Solve for x
    x = 63,126,562,500/161,820
  6. Step 6: Final answer
    x = 390,103.59

Related Problems

Find third proportional to 80,910 and 125,625
Half scale
Find third proportional to 323,640 and 502,500
Double scale
Find third proportional to 161,822 and 251,253
Similar ratio
Find third proportional to 242,730 and 376,875
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.