Home / 292,000-322,720

Finding the Third Proportional to 292,000 and 322,720

Calculator

Solution

The third proportional to 292,000 and 322,720 is: 356,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,000 : 322,720 = 322,720 : x
  2. Step 2: Convert to fraction form
    292,000/322,720 = 322,720/x
  3. Step 3: Cross multiply
    292,000x = 322,720 × 322,720
  4. Step 4: Simplify right side
    292,000x = 104,148,198,400
  5. Step 5: Solve for x
    x = 104,148,198,400/292,000
  6. Step 6: Final answer
    x = 356,671.91

Related Problems

Find third proportional to 146,000 and 161,360
Half scale
Find third proportional to 584,000 and 645,440
Double scale
Find third proportional to 292,002 and 322,722
Similar ratio
Find third proportional to 438,000 and 484,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.