Home / 238,389-505,209

Finding the Third Proportional to 238,389 and 505,209

Calculator

Solution

The third proportional to 238,389 and 505,209 is: 1,070,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,389 : 505,209 = 505,209 : x
  2. Step 2: Convert to fraction form
    238,389/505,209 = 505,209/x
  3. Step 3: Cross multiply
    238,389x = 505,209 × 505,209
  4. Step 4: Simplify right side
    238,389x = 255,236,133,681
  5. Step 5: Solve for x
    x = 255,236,133,681/238,389
  6. Step 6: Final answer
    x = 1,070,670.77

Related Problems

Find third proportional to 119,194.50 and 252,604.50
Half scale
Find third proportional to 476,778 and 1,010,418
Double scale
Find third proportional to 238,391 and 505,213
Similar ratio
Find third proportional to 357,583.50 and 757,813.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.