Home / 242,790-515,712

Finding the Third Proportional to 242,790 and 515,712

Calculator

Solution

The third proportional to 242,790 and 515,712 is: 1,095,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,790 : 515,712 = 515,712 : x
  2. Step 2: Convert to fraction form
    242,790/515,712 = 515,712/x
  3. Step 3: Cross multiply
    242,790x = 515,712 × 515,712
  4. Step 4: Simplify right side
    242,790x = 265,958,866,944
  5. Step 5: Solve for x
    x = 265,958,866,944/242,790
  6. Step 6: Final answer
    x = 1,095,427.60

Related Problems

Find third proportional to 121,395 and 257,856
Half scale
Find third proportional to 485,580 and 1,031,424
Double scale
Find third proportional to 242,792 and 515,716
Similar ratio
Find third proportional to 364,185 and 773,568
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.