Home / 317,125-485,735

Finding the Third Proportional to 317,125 and 485,735

Calculator

Solution

The third proportional to 317,125 and 485,735 is: 743,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,125 : 485,735 = 485,735 : x
  2. Step 2: Convert to fraction form
    317,125/485,735 = 485,735/x
  3. Step 3: Cross multiply
    317,125x = 485,735 × 485,735
  4. Step 4: Simplify right side
    317,125x = 235,938,490,225
  5. Step 5: Solve for x
    x = 235,938,490,225/317,125
  6. Step 6: Final answer
    x = 743,992.09

Related Problems

Find third proportional to 158,562.50 and 242,867.50
Half scale
Find third proportional to 634,250 and 971,470
Double scale
Find third proportional to 317,127 and 485,738
Similar ratio
Find third proportional to 475,687.50 and 728,602.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.