Home / 135,211-210,457.50

Finding the Third Proportional to 135,211 and 210,457.50

Calculator

Solution

The third proportional to 135,211 and 210,457.50 is: 327,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,211 : 210,457.50 = 210,457.50 : x
  2. Step 2: Convert to fraction form
    135,211/210,457.50 = 210,457.50/x
  3. Step 3: Cross multiply
    135,211x = 210,457.50 × 210,457.50
  4. Step 4: Simplify right side
    135,211x = 44,292,359,306.25
  5. Step 5: Solve for x
    x = 44,292,359,306.25/135,211
  6. Step 6: Final answer
    x = 327,579.56

Related Problems

Find third proportional to 67,605.50 and 105,228.75
Half scale
Find third proportional to 270,422 and 420,915
Double scale
Find third proportional to 135,213 and 210,461
Similar ratio
Find third proportional to 202,816.50 and 315,686.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.