Home / 187,406-289,868

Finding the Third Proportional to 187,406 and 289,868

Calculator

Solution

The third proportional to 187,406 and 289,868 is: 448,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,406 : 289,868 = 289,868 : x
  2. Step 2: Convert to fraction form
    187,406/289,868 = 289,868/x
  3. Step 3: Cross multiply
    187,406x = 289,868 × 289,868
  4. Step 4: Simplify right side
    187,406x = 84,023,457,424
  5. Step 5: Solve for x
    x = 84,023,457,424/187,406
  6. Step 6: Final answer
    x = 448,349.88

Related Problems

Find third proportional to 93,703 and 144,934
Half scale
Find third proportional to 374,812 and 579,736
Double scale
Find third proportional to 187,408 and 289,871
Similar ratio
Find third proportional to 281,109 and 434,802
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.