Home / 258,766-386,553

Finding the Third Proportional to 258,766 and 386,553

Calculator

Solution

The third proportional to 258,766 and 386,553 is: 577,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,766 : 386,553 = 386,553 : x
  2. Step 2: Convert to fraction form
    258,766/386,553 = 386,553/x
  3. Step 3: Cross multiply
    258,766x = 386,553 × 386,553
  4. Step 4: Simplify right side
    258,766x = 149,423,221,809
  5. Step 5: Solve for x
    x = 149,423,221,809/258,766
  6. Step 6: Final answer
    x = 577,445.34

Related Problems

Find third proportional to 129,383 and 193,276.50
Half scale
Find third proportional to 517,532 and 773,106
Double scale
Find third proportional to 258,768 and 386,556
Similar ratio
Find third proportional to 388,149 and 579,829.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.