Home / 131,689-198,679.50

Finding the Third Proportional to 131,689 and 198,679.50

Calculator

Solution

The third proportional to 131,689 and 198,679.50 is: 299,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,689 : 198,679.50 = 198,679.50 : x
  2. Step 2: Convert to fraction form
    131,689/198,679.50 = 198,679.50/x
  3. Step 3: Cross multiply
    131,689x = 198,679.50 × 198,679.50
  4. Step 4: Simplify right side
    131,689x = 39,473,543,720.25
  5. Step 5: Solve for x
    x = 39,473,543,720.25/131,689
  6. Step 6: Final answer
    x = 299,748.22

Related Problems

Find third proportional to 65,844.50 and 99,339.75
Half scale
Find third proportional to 263,378 and 397,359
Double scale
Find third proportional to 131,691 and 198,683
Similar ratio
Find third proportional to 197,533.50 and 298,019.25
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.