Home / 243,138-505,604

Finding the Third Proportional to 243,138 and 505,604

Calculator

Solution

The third proportional to 243,138 and 505,604 is: 1,051,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,138 : 505,604 = 505,604 : x
  2. Step 2: Convert to fraction form
    243,138/505,604 = 505,604/x
  3. Step 3: Cross multiply
    243,138x = 505,604 × 505,604
  4. Step 4: Simplify right side
    243,138x = 255,635,404,816
  5. Step 5: Solve for x
    x = 255,635,404,816/243,138
  6. Step 6: Final answer
    x = 1,051,400.46

Related Problems

Find third proportional to 121,569 and 252,802
Half scale
Find third proportional to 486,276 and 1,011,208
Double scale
Find third proportional to 243,140 and 505,608
Similar ratio
Find third proportional to 364,707 and 758,406
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.