Home / 133,721-291,423

Finding the Third Proportional to 133,721 and 291,423

Calculator

Solution

The third proportional to 133,721 and 291,423 is: 635,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,721 : 291,423 = 291,423 : x
  2. Step 2: Convert to fraction form
    133,721/291,423 = 291,423/x
  3. Step 3: Cross multiply
    133,721x = 291,423 × 291,423
  4. Step 4: Simplify right side
    133,721x = 84,927,364,929
  5. Step 5: Solve for x
    x = 84,927,364,929/133,721
  6. Step 6: Final answer
    x = 635,108.66

Related Problems

Find third proportional to 66,860.50 and 145,711.50
Half scale
Find third proportional to 267,442 and 582,846
Double scale
Find third proportional to 133,723 and 291,427
Similar ratio
Find third proportional to 200,581.50 and 437,134.50
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.