Home / 270,752-398,280

Finding the Third Proportional to 270,752 and 398,280

Calculator

Solution

The third proportional to 270,752 and 398,280 is: 585,875.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,752 : 398,280 = 398,280 : x
  2. Step 2: Convert to fraction form
    270,752/398,280 = 398,280/x
  3. Step 3: Cross multiply
    270,752x = 398,280 × 398,280
  4. Step 4: Simplify right side
    270,752x = 158,626,958,400
  5. Step 5: Solve for x
    x = 158,626,958,400/270,752
  6. Step 6: Final answer
    x = 585,875.48

Related Problems

Find third proportional to 135,376 and 199,140
Half scale
Find third proportional to 541,504 and 796,560
Double scale
Find third proportional to 270,754 and 398,283
Similar ratio
Find third proportional to 406,128 and 597,420
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.