Home / 133,357-289,611

Finding the Third Proportional to 133,357 and 289,611

Calculator

Solution

The third proportional to 133,357 and 289,611 is: 628,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,357 : 289,611 = 289,611 : x
  2. Step 2: Convert to fraction form
    133,357/289,611 = 289,611/x
  3. Step 3: Cross multiply
    133,357x = 289,611 × 289,611
  4. Step 4: Simplify right side
    133,357x = 83,874,531,321
  5. Step 5: Solve for x
    x = 83,874,531,321/133,357
  6. Step 6: Final answer
    x = 628,947.35

Related Problems

Find third proportional to 66,678.50 and 144,805.50
Half scale
Find third proportional to 266,714 and 579,222
Double scale
Find third proportional to 133,359 and 289,615
Similar ratio
Find third proportional to 200,035.50 and 434,416.50
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.