Home / 155,890-336,689

Finding the Third Proportional to 155,890 and 336,689

Calculator

Solution

The third proportional to 155,890 and 336,689 is: 727,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,890 : 336,689 = 336,689 : x
  2. Step 2: Convert to fraction form
    155,890/336,689 = 336,689/x
  3. Step 3: Cross multiply
    155,890x = 336,689 × 336,689
  4. Step 4: Simplify right side
    155,890x = 113,359,482,721
  5. Step 5: Solve for x
    x = 113,359,482,721/155,890
  6. Step 6: Final answer
    x = 727,176.10

Related Problems

Find third proportional to 77,945 and 168,344.50
Half scale
Find third proportional to 311,780 and 673,378
Double scale
Find third proportional to 155,892 and 336,693
Similar ratio
Find third proportional to 233,835 and 505,033.50
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.