Home / 210,256-317,560

Finding the Third Proportional to 210,256 and 317,560

Calculator

Solution

The third proportional to 210,256 and 317,560 is: 479,626.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,256 : 317,560 = 317,560 : x
  2. Step 2: Convert to fraction form
    210,256/317,560 = 317,560/x
  3. Step 3: Cross multiply
    210,256x = 317,560 × 317,560
  4. Step 4: Simplify right side
    210,256x = 100,844,353,600
  5. Step 5: Solve for x
    x = 100,844,353,600/210,256
  6. Step 6: Final answer
    x = 479,626.52

Related Problems

Find third proportional to 105,128 and 158,780
Half scale
Find third proportional to 420,512 and 635,120
Double scale
Find third proportional to 210,258 and 317,563
Similar ratio
Find third proportional to 315,384 and 476,340
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.