Home / 156,960-343,080

Finding the Third Proportional to 156,960 and 343,080

Calculator

Solution

The third proportional to 156,960 and 343,080 is: 749,897.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,960 : 343,080 = 343,080 : x
  2. Step 2: Convert to fraction form
    156,960/343,080 = 343,080/x
  3. Step 3: Cross multiply
    156,960x = 343,080 × 343,080
  4. Step 4: Simplify right side
    156,960x = 117,703,886,400
  5. Step 5: Solve for x
    x = 117,703,886,400/156,960
  6. Step 6: Final answer
    x = 749,897.34

Related Problems

Find third proportional to 78,480 and 171,540
Half scale
Find third proportional to 313,920 and 686,160
Double scale
Find third proportional to 156,962 and 343,084
Similar ratio
Find third proportional to 235,440 and 514,620
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.