Home / 143,003-210,373

Finding the Third Proportional to 143,003 and 210,373

Calculator

Solution

The third proportional to 143,003 and 210,373 is: 309,481.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,003 : 210,373 = 210,373 : x
  2. Step 2: Convert to fraction form
    143,003/210,373 = 210,373/x
  3. Step 3: Cross multiply
    143,003x = 210,373 × 210,373
  4. Step 4: Simplify right side
    143,003x = 44,256,799,129
  5. Step 5: Solve for x
    x = 44,256,799,129/143,003
  6. Step 6: Final answer
    x = 309,481.61

Related Problems

Find third proportional to 71,501.50 and 105,186.50
Half scale
Find third proportional to 286,006 and 420,746
Double scale
Find third proportional to 143,005 and 210,376
Similar ratio
Find third proportional to 214,504.50 and 315,559.50
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.