Home / 199,506-279,947

Finding the Third Proportional to 199,506 and 279,947

Calculator

Solution

The third proportional to 199,506 and 279,947 is: 392,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,506 : 279,947 = 279,947 : x
  2. Step 2: Convert to fraction form
    199,506/279,947 = 279,947/x
  3. Step 3: Cross multiply
    199,506x = 279,947 × 279,947
  4. Step 4: Simplify right side
    199,506x = 78,370,322,809
  5. Step 5: Solve for x
    x = 78,370,322,809/199,506
  6. Step 6: Final answer
    x = 392,821.88

Related Problems

Find third proportional to 99,753 and 139,973.50
Half scale
Find third proportional to 399,012 and 559,894
Double scale
Find third proportional to 199,508 and 279,950
Similar ratio
Find third proportional to 299,259 and 419,920.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.