Home / 138,158-213,342

Finding the Third Proportional to 138,158 and 213,342

Calculator

Solution

The third proportional to 138,158 and 213,342 is: 329,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,158 : 213,342 = 213,342 : x
  2. Step 2: Convert to fraction form
    138,158/213,342 = 213,342/x
  3. Step 3: Cross multiply
    138,158x = 213,342 × 213,342
  4. Step 4: Simplify right side
    138,158x = 45,514,808,964
  5. Step 5: Solve for x
    x = 45,514,808,964/138,158
  6. Step 6: Final answer
    x = 329,440.27

Related Problems

Find third proportional to 69,079 and 106,671
Half scale
Find third proportional to 276,316 and 426,684
Double scale
Find third proportional to 138,160 and 213,345
Similar ratio
Find third proportional to 207,237 and 320,013
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.