Home / 191,436-421,464

Finding the Third Proportional to 191,436 and 421,464

Calculator

Solution

The third proportional to 191,436 and 421,464 is: 927,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,436 : 421,464 = 421,464 : x
  2. Step 2: Convert to fraction form
    191,436/421,464 = 421,464/x
  3. Step 3: Cross multiply
    191,436x = 421,464 × 421,464
  4. Step 4: Simplify right side
    191,436x = 177,631,903,296
  5. Step 5: Solve for x
    x = 177,631,903,296/191,436
  6. Step 6: Final answer
    x = 927,891.85

Related Problems

Find third proportional to 95,718 and 210,732
Half scale
Find third proportional to 382,872 and 842,928
Double scale
Find third proportional to 191,438 and 421,468
Similar ratio
Find third proportional to 287,154 and 632,196
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.