Home / 276,302-419,859

Finding the Third Proportional to 276,302 and 419,859

Calculator

Solution

The third proportional to 276,302 and 419,859 is: 638,003.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,302 : 419,859 = 419,859 : x
  2. Step 2: Convert to fraction form
    276,302/419,859 = 419,859/x
  3. Step 3: Cross multiply
    276,302x = 419,859 × 419,859
  4. Step 4: Simplify right side
    276,302x = 176,281,579,881
  5. Step 5: Solve for x
    x = 176,281,579,881/276,302
  6. Step 6: Final answer
    x = 638,003.27

Related Problems

Find third proportional to 138,151 and 209,929.50
Half scale
Find third proportional to 552,604 and 839,718
Double scale
Find third proportional to 276,304 and 419,862
Similar ratio
Find third proportional to 414,453 and 629,788.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.