Home / 128,494-303,740

Finding the Third Proportional to 128,494 and 303,740

Calculator

Solution

The third proportional to 128,494 and 303,740 is: 717,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,494 : 303,740 = 303,740 : x
  2. Step 2: Convert to fraction form
    128,494/303,740 = 303,740/x
  3. Step 3: Cross multiply
    128,494x = 303,740 × 303,740
  4. Step 4: Simplify right side
    128,494x = 92,257,987,600
  5. Step 5: Solve for x
    x = 92,257,987,600/128,494
  6. Step 6: Final answer
    x = 717,994.52

Related Problems

Find third proportional to 64,247 and 151,870
Half scale
Find third proportional to 256,988 and 607,480
Double scale
Find third proportional to 128,496 and 303,745
Similar ratio
Find third proportional to 192,741 and 455,610
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.