Home / 272,212-398,822

Finding the Third Proportional to 272,212 and 398,822

Calculator

Solution

The third proportional to 272,212 and 398,822 is: 584,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,212 : 398,822 = 398,822 : x
  2. Step 2: Convert to fraction form
    272,212/398,822 = 398,822/x
  3. Step 3: Cross multiply
    272,212x = 398,822 × 398,822
  4. Step 4: Simplify right side
    272,212x = 159,058,987,684
  5. Step 5: Solve for x
    x = 159,058,987,684/272,212
  6. Step 6: Final answer
    x = 584,320.26

Related Problems

Find third proportional to 136,106 and 199,411
Half scale
Find third proportional to 544,424 and 797,644
Double scale
Find third proportional to 272,214 and 398,825
Similar ratio
Find third proportional to 408,318 and 598,233
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.