Home / 258,948-349,860

Finding the Third Proportional to 258,948 and 349,860

Calculator

Solution

The third proportional to 258,948 and 349,860 is: 472,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,948 : 349,860 = 349,860 : x
  2. Step 2: Convert to fraction form
    258,948/349,860 = 349,860/x
  3. Step 3: Cross multiply
    258,948x = 349,860 × 349,860
  4. Step 4: Simplify right side
    258,948x = 122,402,019,600
  5. Step 5: Solve for x
    x = 122,402,019,600/258,948
  6. Step 6: Final answer
    x = 472,689.57

Related Problems

Find third proportional to 129,474 and 174,930
Half scale
Find third proportional to 517,896 and 699,720
Double scale
Find third proportional to 258,950 and 349,863
Similar ratio
Find third proportional to 388,422 and 524,790
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.