Home / 175,320-378,679.50

Finding the Third Proportional to 175,320 and 378,679.50

Calculator

Solution

The third proportional to 175,320 and 378,679.50 is: 817,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,320 : 378,679.50 = 378,679.50 : x
  2. Step 2: Convert to fraction form
    175,320/378,679.50 = 378,679.50/x
  3. Step 3: Cross multiply
    175,320x = 378,679.50 × 378,679.50
  4. Step 4: Simplify right side
    175,320x = 143,398,163,720.25
  5. Step 5: Solve for x
    x = 143,398,163,720.25/175,320
  6. Step 6: Final answer
    x = 817,922.45

Related Problems

Find third proportional to 87,660 and 189,339.75
Half scale
Find third proportional to 350,640 and 757,359
Double scale
Find third proportional to 175,322 and 378,684
Similar ratio
Find third proportional to 262,980 and 568,019.25
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.