Home / 215,358-320,933

Finding the Third Proportional to 215,358 and 320,933

Calculator

Solution

The third proportional to 215,358 and 320,933 is: 478,264.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,358 : 320,933 = 320,933 : x
  2. Step 2: Convert to fraction form
    215,358/320,933 = 320,933/x
  3. Step 3: Cross multiply
    215,358x = 320,933 × 320,933
  4. Step 4: Simplify right side
    215,358x = 102,997,990,489
  5. Step 5: Solve for x
    x = 102,997,990,489/215,358
  6. Step 6: Final answer
    x = 478,264.06

Related Problems

Find third proportional to 107,679 and 160,466.50
Half scale
Find third proportional to 430,716 and 641,866
Double scale
Find third proportional to 215,360 and 320,936
Similar ratio
Find third proportional to 323,037 and 481,399.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.