Home / 190,443-278,654

Finding the Third Proportional to 190,443 and 278,654

Calculator

Solution

The third proportional to 190,443 and 278,654 is: 407,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,443 : 278,654 = 278,654 : x
  2. Step 2: Convert to fraction form
    190,443/278,654 = 278,654/x
  3. Step 3: Cross multiply
    190,443x = 278,654 × 278,654
  4. Step 4: Simplify right side
    190,443x = 77,648,051,716
  5. Step 5: Solve for x
    x = 77,648,051,716/190,443
  6. Step 6: Final answer
    x = 407,723.32

Related Problems

Find third proportional to 95,221.50 and 139,327
Half scale
Find third proportional to 380,886 and 557,308
Double scale
Find third proportional to 190,445 and 278,657
Similar ratio
Find third proportional to 285,664.50 and 417,981
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.