Home / 221,258-343,173

Finding the Third Proportional to 221,258 and 343,173

Calculator

Solution

The third proportional to 221,258 and 343,173 is: 532,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,258 : 343,173 = 343,173 : x
  2. Step 2: Convert to fraction form
    221,258/343,173 = 343,173/x
  3. Step 3: Cross multiply
    221,258x = 343,173 × 343,173
  4. Step 4: Simplify right side
    221,258x = 117,767,707,929
  5. Step 5: Solve for x
    x = 117,767,707,929/221,258
  6. Step 6: Final answer
    x = 532,264.18

Related Problems

Find third proportional to 110,629 and 171,586.50
Half scale
Find third proportional to 442,516 and 686,346
Double scale
Find third proportional to 221,260 and 343,176
Similar ratio
Find third proportional to 331,887 and 514,759.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.