Home / 170,820-255,438

Finding the Third Proportional to 170,820 and 255,438

Calculator

Solution

The third proportional to 170,820 and 255,438 is: 381,972.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,820 : 255,438 = 255,438 : x
  2. Step 2: Convert to fraction form
    170,820/255,438 = 255,438/x
  3. Step 3: Cross multiply
    170,820x = 255,438 × 255,438
  4. Step 4: Simplify right side
    170,820x = 65,248,571,844
  5. Step 5: Solve for x
    x = 65,248,571,844/170,820
  6. Step 6: Final answer
    x = 381,972.67

Related Problems

Find third proportional to 85,410 and 127,719
Half scale
Find third proportional to 341,640 and 510,876
Double scale
Find third proportional to 170,822 and 255,441
Similar ratio
Find third proportional to 256,230 and 383,157
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.