Home / 187,408-289,871

Finding the Third Proportional to 187,408 and 289,871

Calculator

Solution

The third proportional to 187,408 and 289,871 is: 448,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,408 : 289,871 = 289,871 : x
  2. Step 2: Convert to fraction form
    187,408/289,871 = 289,871/x
  3. Step 3: Cross multiply
    187,408x = 289,871 × 289,871
  4. Step 4: Simplify right side
    187,408x = 84,025,196,641
  5. Step 5: Solve for x
    x = 84,025,196,641/187,408
  6. Step 6: Final answer
    x = 448,354.37

Related Problems

Find third proportional to 93,704 and 144,935.50
Half scale
Find third proportional to 374,816 and 579,742
Double scale
Find third proportional to 187,410 and 289,874
Similar ratio
Find third proportional to 281,112 and 434,806.50
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.