Home / 145,434-317,148

Finding the Third Proportional to 145,434 and 317,148

Calculator

Solution

The third proportional to 145,434 and 317,148 is: 691,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,434 : 317,148 = 317,148 : x
  2. Step 2: Convert to fraction form
    145,434/317,148 = 317,148/x
  3. Step 3: Cross multiply
    145,434x = 317,148 × 317,148
  4. Step 4: Simplify right side
    145,434x = 100,582,853,904
  5. Step 5: Solve for x
    x = 100,582,853,904/145,434
  6. Step 6: Final answer
    x = 691,604.81

Related Problems

Find third proportional to 72,717 and 158,574
Half scale
Find third proportional to 290,868 and 634,296
Double scale
Find third proportional to 145,436 and 317,152
Similar ratio
Find third proportional to 218,151 and 475,722
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.