Home / 210,719-458,857

Finding the Third Proportional to 210,719 and 458,857

Calculator

Solution

The third proportional to 210,719 and 458,857 is: 999,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,719 : 458,857 = 458,857 : x
  2. Step 2: Convert to fraction form
    210,719/458,857 = 458,857/x
  3. Step 3: Cross multiply
    210,719x = 458,857 × 458,857
  4. Step 4: Simplify right side
    210,719x = 210,549,746,449
  5. Step 5: Solve for x
    x = 210,549,746,449/210,719
  6. Step 6: Final answer
    x = 999,196.78

Related Problems

Find third proportional to 105,359.50 and 229,428.50
Half scale
Find third proportional to 421,438 and 917,714
Double scale
Find third proportional to 210,721 and 458,861
Similar ratio
Find third proportional to 316,078.50 and 688,285.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.