Home / 131,400-198,247.50

Finding the Third Proportional to 131,400 and 198,247.50

Calculator

Solution

The third proportional to 131,400 and 198,247.50 is: 299,102.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,400 : 198,247.50 = 198,247.50 : x
  2. Step 2: Convert to fraction form
    131,400/198,247.50 = 198,247.50/x
  3. Step 3: Cross multiply
    131,400x = 198,247.50 × 198,247.50
  4. Step 4: Simplify right side
    131,400x = 39,302,071,256.25
  5. Step 5: Solve for x
    x = 39,302,071,256.25/131,400
  6. Step 6: Final answer
    x = 299,102.52

Related Problems

Find third proportional to 65,700 and 99,123.75
Half scale
Find third proportional to 262,800 and 396,495
Double scale
Find third proportional to 131,402 and 198,251
Similar ratio
Find third proportional to 197,100 and 297,371.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.