Home / 189,345-405,282

Finding the Third Proportional to 189,345 and 405,282

Calculator

Solution

The third proportional to 189,345 and 405,282 is: 867,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,345 : 405,282 = 405,282 : x
  2. Step 2: Convert to fraction form
    189,345/405,282 = 405,282/x
  3. Step 3: Cross multiply
    189,345x = 405,282 × 405,282
  4. Step 4: Simplify right side
    189,345x = 164,253,499,524
  5. Step 5: Solve for x
    x = 164,253,499,524/189,345
  6. Step 6: Final answer
    x = 867,482.63

Related Problems

Find third proportional to 94,672.50 and 202,641
Half scale
Find third proportional to 378,690 and 810,564
Double scale
Find third proportional to 189,347 and 405,286
Similar ratio
Find third proportional to 284,017.50 and 607,923
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.