Home / 145,800-218,700

Finding the Third Proportional to 145,800 and 218,700

Calculator

Solution

The third proportional to 145,800 and 218,700 is: 328,050

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,800 : 218,700 = 218,700 : x
  2. Step 2: Convert to fraction form
    145,800/218,700 = 218,700/x
  3. Step 3: Cross multiply
    145,800x = 218,700 × 218,700
  4. Step 4: Simplify right side
    145,800x = 47,829,690,000
  5. Step 5: Solve for x
    x = 47,829,690,000/145,800
  6. Step 6: Final answer
    x = 328,050

Related Problems

Find third proportional to 72,900 and 109,350
Half scale
Find third proportional to 291,600 and 437,400
Double scale
Find third proportional to 145,802 and 218,703
Similar ratio
Find third proportional to 218,700 and 328,050
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.