Home / 143,496-315,285.75

Finding the Third Proportional to 143,496 and 315,285.75

Calculator

Solution

The third proportional to 143,496 and 315,285.75 is: 692,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,496 : 315,285.75 = 315,285.75 : x
  2. Step 2: Convert to fraction form
    143,496/315,285.75 = 315,285.75/x
  3. Step 3: Cross multiply
    143,496x = 315,285.75 × 315,285.75
  4. Step 4: Simplify right side
    143,496x = 99,405,104,153.06
  5. Step 5: Solve for x
    x = 99,405,104,153.06/143,496
  6. Step 6: Final answer
    x = 692,737.81

Related Problems

Find third proportional to 71,748 and 157,642.88
Half scale
Find third proportional to 286,992 and 630,571.50
Double scale
Find third proportional to 143,498 and 315,290
Similar ratio
Find third proportional to 215,244 and 472,928.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.