Home / 220,708-342,368

Finding the Third Proportional to 220,708 and 342,368

Calculator

Solution

The third proportional to 220,708 and 342,368 is: 531,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,708 : 342,368 = 342,368 : x
  2. Step 2: Convert to fraction form
    220,708/342,368 = 342,368/x
  3. Step 3: Cross multiply
    220,708x = 342,368 × 342,368
  4. Step 4: Simplify right side
    220,708x = 117,215,847,424
  5. Step 5: Solve for x
    x = 117,215,847,424/220,708
  6. Step 6: Final answer
    x = 531,090.16

Related Problems

Find third proportional to 110,354 and 171,184
Half scale
Find third proportional to 441,416 and 684,736
Double scale
Find third proportional to 220,710 and 342,371
Similar ratio
Find third proportional to 331,062 and 513,552
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.