Home / 90,387-197,433

Finding the Third Proportional to 90,387 and 197,433

Calculator

Solution

The third proportional to 90,387 and 197,433 is: 431,254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387 : 197,433 = 197,433 : x
  2. Step 2: Convert to fraction form
    90,387/197,433 = 197,433/x
  3. Step 3: Cross multiply
    90,387x = 197,433 × 197,433
  4. Step 4: Simplify right side
    90,387x = 38,979,789,489
  5. Step 5: Solve for x
    x = 38,979,789,489/90,387
  6. Step 6: Final answer
    x = 431,254.38

Related Problems

Find third proportional to 45,193.50 and 98,716.50
Half scale
Find third proportional to 180,774 and 394,866
Double scale
Find third proportional to 90,389 and 197,437
Similar ratio
Find third proportional to 135,580.50 and 296,149.50
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.