Home / 140,316-210,634

Finding the Third Proportional to 140,316 and 210,634

Calculator

Solution

The third proportional to 140,316 and 210,634 is: 316,191.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,316 : 210,634 = 210,634 : x
  2. Step 2: Convert to fraction form
    140,316/210,634 = 210,634/x
  3. Step 3: Cross multiply
    140,316x = 210,634 × 210,634
  4. Step 4: Simplify right side
    140,316x = 44,366,681,956
  5. Step 5: Solve for x
    x = 44,366,681,956/140,316
  6. Step 6: Final answer
    x = 316,191.18

Related Problems

Find third proportional to 70,158 and 105,317
Half scale
Find third proportional to 280,632 and 421,268
Double scale
Find third proportional to 140,318 and 210,637
Similar ratio
Find third proportional to 210,474 and 315,951
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.