Home / 272,382-422,739

Finding the Third Proportional to 272,382 and 422,739

Calculator

Solution

The third proportional to 272,382 and 422,739 is: 656,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,382 : 422,739 = 422,739 : x
  2. Step 2: Convert to fraction form
    272,382/422,739 = 422,739/x
  3. Step 3: Cross multiply
    272,382x = 422,739 × 422,739
  4. Step 4: Simplify right side
    272,382x = 178,708,262,121
  5. Step 5: Solve for x
    x = 178,708,262,121/272,382
  6. Step 6: Final answer
    x = 656,094.24

Related Problems

Find third proportional to 136,191 and 211,369.50
Half scale
Find third proportional to 544,764 and 845,478
Double scale
Find third proportional to 272,384 and 422,742
Similar ratio
Find third proportional to 408,573 and 634,108.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.