Home / 157,890-339,204

Finding the Third Proportional to 157,890 and 339,204

Calculator

Solution

The third proportional to 157,890 and 339,204 is: 728,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,890 : 339,204 = 339,204 : x
  2. Step 2: Convert to fraction form
    157,890/339,204 = 339,204/x
  3. Step 3: Cross multiply
    157,890x = 339,204 × 339,204
  4. Step 4: Simplify right side
    157,890x = 115,059,353,616
  5. Step 5: Solve for x
    x = 115,059,353,616/157,890
  6. Step 6: Final answer
    x = 728,731.10

Related Problems

Find third proportional to 78,945 and 169,602
Half scale
Find third proportional to 315,780 and 678,408
Double scale
Find third proportional to 157,892 and 339,208
Similar ratio
Find third proportional to 236,835 and 508,806
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.