Home / 140,940-218,376

Finding the Third Proportional to 140,940 and 218,376

Calculator

Solution

The third proportional to 140,940 and 218,376 is: 338,357.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,940 : 218,376 = 218,376 : x
  2. Step 2: Convert to fraction form
    140,940/218,376 = 218,376/x
  3. Step 3: Cross multiply
    140,940x = 218,376 × 218,376
  4. Step 4: Simplify right side
    140,940x = 47,688,077,376
  5. Step 5: Solve for x
    x = 47,688,077,376/140,940
  6. Step 6: Final answer
    x = 338,357.30

Related Problems

Find third proportional to 70,470 and 109,188
Half scale
Find third proportional to 281,880 and 436,752
Double scale
Find third proportional to 140,942 and 218,379
Similar ratio
Find third proportional to 211,410 and 327,564
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.