Home / 136,431-210,478.50

Finding the Third Proportional to 136,431 and 210,478.50

Calculator

Solution

The third proportional to 136,431 and 210,478.50 is: 324,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,431 : 210,478.50 = 210,478.50 : x
  2. Step 2: Convert to fraction form
    136,431/210,478.50 = 210,478.50/x
  3. Step 3: Cross multiply
    136,431x = 210,478.50 × 210,478.50
  4. Step 4: Simplify right side
    136,431x = 44,301,198,962.25
  5. Step 5: Solve for x
    x = 44,301,198,962.25/136,431
  6. Step 6: Final answer
    x = 324,715.05

Related Problems

Find third proportional to 68,215.50 and 105,239.25
Half scale
Find third proportional to 272,862 and 420,957
Double scale
Find third proportional to 136,433 and 210,482
Similar ratio
Find third proportional to 204,646.50 and 315,717.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.