Home / 145,890-322,398

Finding the Third Proportional to 145,890 and 322,398

Calculator

Solution

The third proportional to 145,890 and 322,398 is: 712,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,890 : 322,398 = 322,398 : x
  2. Step 2: Convert to fraction form
    145,890/322,398 = 322,398/x
  3. Step 3: Cross multiply
    145,890x = 322,398 × 322,398
  4. Step 4: Simplify right side
    145,890x = 103,940,470,404
  5. Step 5: Solve for x
    x = 103,940,470,404/145,890
  6. Step 6: Final answer
    x = 712,457.81

Related Problems

Find third proportional to 72,945 and 161,199
Half scale
Find third proportional to 291,780 and 644,796
Double scale
Find third proportional to 145,892 and 322,402
Similar ratio
Find third proportional to 218,835 and 483,597
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.