Home / 155,536-418,981

Finding the Third Proportional to 155,536 and 418,981

Calculator

Solution

The third proportional to 155,536 and 418,981 is: 1,128,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,536 : 418,981 = 418,981 : x
  2. Step 2: Convert to fraction form
    155,536/418,981 = 418,981/x
  3. Step 3: Cross multiply
    155,536x = 418,981 × 418,981
  4. Step 4: Simplify right side
    155,536x = 175,545,078,361
  5. Step 5: Solve for x
    x = 175,545,078,361/155,536
  6. Step 6: Final answer
    x = 1,128,645.96

Related Problems

Find third proportional to 77,768 and 209,490.50
Half scale
Find third proportional to 311,072 and 837,962
Double scale
Find third proportional to 155,538 and 418,986
Similar ratio
Find third proportional to 233,304 and 628,471.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.