Home / 156,972-343,288

Finding the Third Proportional to 156,972 and 343,288

Calculator

Solution

The third proportional to 156,972 and 343,288 is: 750,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972 : 343,288 = 343,288 : x
  2. Step 2: Convert to fraction form
    156,972/343,288 = 343,288/x
  3. Step 3: Cross multiply
    156,972x = 343,288 × 343,288
  4. Step 4: Simplify right side
    156,972x = 117,846,650,944
  5. Step 5: Solve for x
    x = 117,846,650,944/156,972
  6. Step 6: Final answer
    x = 750,749.50

Related Problems

Find third proportional to 78,486 and 171,644
Half scale
Find third proportional to 313,944 and 686,576
Double scale
Find third proportional to 156,974 and 343,292
Similar ratio
Find third proportional to 235,458 and 514,932
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.