Home / 109,890-239,913

Finding the Third Proportional to 109,890 and 239,913

Calculator

Solution

The third proportional to 109,890 and 239,913 is: 523,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890 : 239,913 = 239,913 : x
  2. Step 2: Convert to fraction form
    109,890/239,913 = 239,913/x
  3. Step 3: Cross multiply
    109,890x = 239,913 × 239,913
  4. Step 4: Simplify right side
    109,890x = 57,558,247,569
  5. Step 5: Solve for x
    x = 57,558,247,569/109,890
  6. Step 6: Final answer
    x = 523,780.58

Related Problems

Find third proportional to 54,945 and 119,956.50
Half scale
Find third proportional to 219,780 and 479,826
Double scale
Find third proportional to 109,892 and 239,917
Similar ratio
Find third proportional to 164,835 and 359,869.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.