Home / 133,685-290,427

Finding the Third Proportional to 133,685 and 290,427

Calculator

Solution

The third proportional to 133,685 and 290,427 is: 630,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,685 : 290,427 = 290,427 : x
  2. Step 2: Convert to fraction form
    133,685/290,427 = 290,427/x
  3. Step 3: Cross multiply
    133,685x = 290,427 × 290,427
  4. Step 4: Simplify right side
    133,685x = 84,347,842,329
  5. Step 5: Solve for x
    x = 84,347,842,329/133,685
  6. Step 6: Final answer
    x = 630,944.70

Related Problems

Find third proportional to 66,842.50 and 145,213.50
Half scale
Find third proportional to 267,370 and 580,854
Double scale
Find third proportional to 133,687 and 290,431
Similar ratio
Find third proportional to 200,527.50 and 435,640.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.