Home / 258,911-349,806

Finding the Third Proportional to 258,911 and 349,806

Calculator

Solution

The third proportional to 258,911 and 349,806 is: 472,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,911 : 349,806 = 349,806 : x
  2. Step 2: Convert to fraction form
    258,911/349,806 = 349,806/x
  3. Step 3: Cross multiply
    258,911x = 349,806 × 349,806
  4. Step 4: Simplify right side
    258,911x = 122,364,237,636
  5. Step 5: Solve for x
    x = 122,364,237,636/258,911
  6. Step 6: Final answer
    x = 472,611.20

Related Problems

Find third proportional to 129,455.50 and 174,903
Half scale
Find third proportional to 517,822 and 699,612
Double scale
Find third proportional to 258,913 and 349,809
Similar ratio
Find third proportional to 388,366.50 and 524,709
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.