Home / 214,669-315,438

Finding the Third Proportional to 214,669 and 315,438

Calculator

Solution

The third proportional to 214,669 and 315,438 is: 463,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,669 : 315,438 = 315,438 : x
  2. Step 2: Convert to fraction form
    214,669/315,438 = 315,438/x
  3. Step 3: Cross multiply
    214,669x = 315,438 × 315,438
  4. Step 4: Simplify right side
    214,669x = 99,501,131,844
  5. Step 5: Solve for x
    x = 99,501,131,844/214,669
  6. Step 6: Final answer
    x = 463,509.55

Related Problems

Find third proportional to 107,334.50 and 157,719
Half scale
Find third proportional to 429,338 and 630,876
Double scale
Find third proportional to 214,671 and 315,441
Similar ratio
Find third proportional to 322,003.50 and 473,157
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.