Home / 311,700-445,698

Finding the Third Proportional to 311,700 and 445,698

Calculator

Solution

The third proportional to 311,700 and 445,698 is: 637,300.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,700 : 445,698 = 445,698 : x
  2. Step 2: Convert to fraction form
    311,700/445,698 = 445,698/x
  3. Step 3: Cross multiply
    311,700x = 445,698 × 445,698
  4. Step 4: Simplify right side
    311,700x = 198,646,707,204
  5. Step 5: Solve for x
    x = 198,646,707,204/311,700
  6. Step 6: Final answer
    x = 637,300.95

Related Problems

Find third proportional to 155,850 and 222,849
Half scale
Find third proportional to 623,400 and 891,396
Double scale
Find third proportional to 311,702 and 445,701
Similar ratio
Find third proportional to 467,550 and 668,547
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.