Home / 188,686-256,389

Finding the Third Proportional to 188,686 and 256,389

Calculator

Solution

The third proportional to 188,686 and 256,389 is: 348,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,686 : 256,389 = 256,389 : x
  2. Step 2: Convert to fraction form
    188,686/256,389 = 256,389/x
  3. Step 3: Cross multiply
    188,686x = 256,389 × 256,389
  4. Step 4: Simplify right side
    188,686x = 65,735,319,321
  5. Step 5: Solve for x
    x = 65,735,319,321/188,686
  6. Step 6: Final answer
    x = 348,384.72

Related Problems

Find third proportional to 94,343 and 128,194.50
Half scale
Find third proportional to 377,372 and 512,778
Double scale
Find third proportional to 188,688 and 256,392
Similar ratio
Find third proportional to 283,029 and 384,583.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.