Home / 147,159-317,839

Finding the Third Proportional to 147,159 and 317,839

Calculator

Solution

The third proportional to 147,159 and 317,839 is: 686,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,159 : 317,839 = 317,839 : x
  2. Step 2: Convert to fraction form
    147,159/317,839 = 317,839/x
  3. Step 3: Cross multiply
    147,159x = 317,839 × 317,839
  4. Step 4: Simplify right side
    147,159x = 101,021,629,921
  5. Step 5: Solve for x
    x = 101,021,629,921/147,159
  6. Step 6: Final answer
    x = 686,479.45

Related Problems

Find third proportional to 73,579.50 and 158,919.50
Half scale
Find third proportional to 294,318 and 635,678
Double scale
Find third proportional to 147,161 and 317,843
Similar ratio
Find third proportional to 220,738.50 and 476,758.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.