Home / 196,143-423,390

Finding the Third Proportional to 196,143 and 423,390

Calculator

Solution

The third proportional to 196,143 and 423,390 is: 913,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,143 : 423,390 = 423,390 : x
  2. Step 2: Convert to fraction form
    196,143/423,390 = 423,390/x
  3. Step 3: Cross multiply
    196,143x = 423,390 × 423,390
  4. Step 4: Simplify right side
    196,143x = 179,259,092,100
  5. Step 5: Solve for x
    x = 179,259,092,100/196,143
  6. Step 6: Final answer
    x = 913,920.42

Related Problems

Find third proportional to 98,071.50 and 211,695
Half scale
Find third proportional to 392,286 and 846,780
Double scale
Find third proportional to 196,145 and 423,394
Similar ratio
Find third proportional to 294,214.50 and 635,085
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.