Home / 256,845-340,804.50

Finding the Third Proportional to 256,845 and 340,804.50

Calculator

Solution

The third proportional to 256,845 and 340,804.50 is: 452,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,845 : 340,804.50 = 340,804.50 : x
  2. Step 2: Convert to fraction form
    256,845/340,804.50 = 340,804.50/x
  3. Step 3: Cross multiply
    256,845x = 340,804.50 × 340,804.50
  4. Step 4: Simplify right side
    256,845x = 116,147,707,220.25
  5. Step 5: Solve for x
    x = 116,147,707,220.25/256,845
  6. Step 6: Final answer
    x = 452,209.34

Related Problems

Find third proportional to 128,422.50 and 170,402.25
Half scale
Find third proportional to 513,690 and 681,609
Double scale
Find third proportional to 256,847 and 340,807
Similar ratio
Find third proportional to 385,267.50 and 511,206.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.