Home / 66,558-144,780

Finding the Third Proportional to 66,558 and 144,780

Calculator

Solution

The third proportional to 66,558 and 144,780 is: 314,932.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,558 : 144,780 = 144,780 : x
  2. Step 2: Convert to fraction form
    66,558/144,780 = 144,780/x
  3. Step 3: Cross multiply
    66,558x = 144,780 × 144,780
  4. Step 4: Simplify right side
    66,558x = 20,961,248,400
  5. Step 5: Solve for x
    x = 20,961,248,400/66,558
  6. Step 6: Final answer
    x = 314,932.07

Related Problems

Find third proportional to 33,279 and 72,390
Half scale
Find third proportional to 133,116 and 289,560
Double scale
Find third proportional to 66,560 and 144,784
Similar ratio
Find third proportional to 99,837 and 217,170
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.