Home / 90,619.50-213,210.75

Finding the Third Proportional to 90,619.50 and 213,210.75

Calculator

Solution

The third proportional to 90,619.50 and 213,210.75 is: 501,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,619.50 : 213,210.75 = 213,210.75 : x
  2. Step 2: Convert to fraction form
    90,619.50/213,210.75 = 213,210.75/x
  3. Step 3: Cross multiply
    90,619.50x = 213,210.75 × 213,210.75
  4. Step 4: Simplify right side
    90,619.50x = 45,458,823,915.56
  5. Step 5: Solve for x
    x = 45,458,823,915.56/90,619.50
  6. Step 6: Final answer
    x = 501,645.05

Related Problems

Find third proportional to 45,309.75 and 106,605.38
Half scale
Find third proportional to 181,239 and 426,421.50
Double scale
Find third proportional to 90,622 and 213,215
Similar ratio
Find third proportional to 135,929.25 and 319,816.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.