Home / 259,270.50-399,969

Finding the Third Proportional to 259,270.50 and 399,969

Calculator

Solution

The third proportional to 259,270.50 and 399,969 is: 617,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,270.50 : 399,969 = 399,969 : x
  2. Step 2: Convert to fraction form
    259,270.50/399,969 = 399,969/x
  3. Step 3: Cross multiply
    259,270.50x = 399,969 × 399,969
  4. Step 4: Simplify right side
    259,270.50x = 159,975,200,961
  5. Step 5: Solve for x
    x = 159,975,200,961/259,270.50
  6. Step 6: Final answer
    x = 617,020.45

Related Problems

Find third proportional to 129,635.25 and 199,984.50
Half scale
Find third proportional to 518,541 and 799,938
Double scale
Find third proportional to 259,273 and 399,972
Similar ratio
Find third proportional to 388,905.75 and 599,953.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.