Home / 136,190-290,908

Finding the Third Proportional to 136,190 and 290,908

Calculator

Solution

The third proportional to 136,190 and 290,908 is: 621,392.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,190 : 290,908 = 290,908 : x
  2. Step 2: Convert to fraction form
    136,190/290,908 = 290,908/x
  3. Step 3: Cross multiply
    136,190x = 290,908 × 290,908
  4. Step 4: Simplify right side
    136,190x = 84,627,464,464
  5. Step 5: Solve for x
    x = 84,627,464,464/136,190
  6. Step 6: Final answer
    x = 621,392.65

Related Problems

Find third proportional to 68,095 and 145,454
Half scale
Find third proportional to 272,380 and 581,816
Double scale
Find third proportional to 136,192 and 290,912
Similar ratio
Find third proportional to 204,285 and 436,362
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.