Home / 242,738-387,814

Finding the Third Proportional to 242,738 and 387,814

Calculator

Solution

The third proportional to 242,738 and 387,814 is: 619,596.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,738 : 387,814 = 387,814 : x
  2. Step 2: Convert to fraction form
    242,738/387,814 = 387,814/x
  3. Step 3: Cross multiply
    242,738x = 387,814 × 387,814
  4. Step 4: Simplify right side
    242,738x = 150,399,698,596
  5. Step 5: Solve for x
    x = 150,399,698,596/242,738
  6. Step 6: Final answer
    x = 619,596.84

Related Problems

Find third proportional to 121,369 and 193,907
Half scale
Find third proportional to 485,476 and 775,628
Double scale
Find third proportional to 242,740 and 387,817
Similar ratio
Find third proportional to 364,107 and 581,721
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.