Home / 172,824-247,140

Finding the Third Proportional to 172,824 and 247,140

Calculator

Solution

The third proportional to 172,824 and 247,140 is: 353,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,824 : 247,140 = 247,140 : x
  2. Step 2: Convert to fraction form
    172,824/247,140 = 247,140/x
  3. Step 3: Cross multiply
    172,824x = 247,140 × 247,140
  4. Step 4: Simplify right side
    172,824x = 61,078,179,600
  5. Step 5: Solve for x
    x = 61,078,179,600/172,824
  6. Step 6: Final answer
    x = 353,412.60

Related Problems

Find third proportional to 86,412 and 123,570
Half scale
Find third proportional to 345,648 and 494,280
Double scale
Find third proportional to 172,826 and 247,143
Similar ratio
Find third proportional to 259,236 and 370,710
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.