Home / 304,364-438,405

Finding the Third Proportional to 304,364 and 438,405

Calculator

Solution

The third proportional to 304,364 and 438,405 is: 631,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,364 : 438,405 = 438,405 : x
  2. Step 2: Convert to fraction form
    304,364/438,405 = 438,405/x
  3. Step 3: Cross multiply
    304,364x = 438,405 × 438,405
  4. Step 4: Simplify right side
    304,364x = 192,198,944,025
  5. Step 5: Solve for x
    x = 192,198,944,025/304,364
  6. Step 6: Final answer
    x = 631,477.26

Related Problems

Find third proportional to 152,182 and 219,202.50
Half scale
Find third proportional to 608,728 and 876,810
Double scale
Find third proportional to 304,366 and 438,408
Similar ratio
Find third proportional to 456,546 and 657,607.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.