Home / 152,290-219,355

Finding the Third Proportional to 152,290 and 219,355

Calculator

Solution

The third proportional to 152,290 and 219,355 is: 315,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,290 : 219,355 = 219,355 : x
  2. Step 2: Convert to fraction form
    152,290/219,355 = 219,355/x
  3. Step 3: Cross multiply
    152,290x = 219,355 × 219,355
  4. Step 4: Simplify right side
    152,290x = 48,116,616,025
  5. Step 5: Solve for x
    x = 48,116,616,025/152,290
  6. Step 6: Final answer
    x = 315,953.88

Related Problems

Find third proportional to 76,145 and 109,677.50
Half scale
Find third proportional to 304,580 and 438,710
Double scale
Find third proportional to 152,292 and 219,358
Similar ratio
Find third proportional to 228,435 and 329,032.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.