Home / 86,322-178,638

Finding the Third Proportional to 86,322 and 178,638

Calculator

Solution

The third proportional to 86,322 and 178,638 is: 369,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,322 : 178,638 = 178,638 : x
  2. Step 2: Convert to fraction form
    86,322/178,638 = 178,638/x
  3. Step 3: Cross multiply
    86,322x = 178,638 × 178,638
  4. Step 4: Simplify right side
    86,322x = 31,911,535,044
  5. Step 5: Solve for x
    x = 31,911,535,044/86,322
  6. Step 6: Final answer
    x = 369,680.21

Related Problems

Find third proportional to 43,161 and 89,319
Half scale
Find third proportional to 172,644 and 357,276
Double scale
Find third proportional to 86,324 and 178,642
Similar ratio
Find third proportional to 129,483 and 267,957
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.