Home / 270,908-398,506

Finding the Third Proportional to 270,908 and 398,506

Calculator

Solution

The third proportional to 270,908 and 398,506 is: 586,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,908 : 398,506 = 398,506 : x
  2. Step 2: Convert to fraction form
    270,908/398,506 = 398,506/x
  3. Step 3: Cross multiply
    270,908x = 398,506 × 398,506
  4. Step 4: Simplify right side
    270,908x = 158,807,032,036
  5. Step 5: Solve for x
    x = 158,807,032,036/270,908
  6. Step 6: Final answer
    x = 586,202.81

Related Problems

Find third proportional to 135,454 and 199,253
Half scale
Find third proportional to 541,816 and 797,012
Double scale
Find third proportional to 270,910 and 398,509
Similar ratio
Find third proportional to 406,362 and 597,759
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.