Home / 133,366-289,628

Finding the Third Proportional to 133,366 and 289,628

Calculator

Solution

The third proportional to 133,366 and 289,628 is: 628,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,366 : 289,628 = 289,628 : x
  2. Step 2: Convert to fraction form
    133,366/289,628 = 289,628/x
  3. Step 3: Cross multiply
    133,366x = 289,628 × 289,628
  4. Step 4: Simplify right side
    133,366x = 83,884,378,384
  5. Step 5: Solve for x
    x = 83,884,378,384/133,366
  6. Step 6: Final answer
    x = 628,978.74

Related Problems

Find third proportional to 66,683 and 144,814
Half scale
Find third proportional to 266,732 and 579,256
Double scale
Find third proportional to 133,368 and 289,632
Similar ratio
Find third proportional to 200,049 and 434,442
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.