Home / 141.75-307.55

Finding the Third Proportional to 141.75 and 307.55

Calculator

Solution

The third proportional to 141.75 and 307.55 is: 667.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.75 : 307.55 = 307.55 : x
  2. Step 2: Convert to fraction form
    141.75/307.55 = 307.55/x
  3. Step 3: Cross multiply
    141.75x = 307.55 × 307.55
  4. Step 4: Simplify right side
    141.75x = 94,585.08
  5. Step 5: Solve for x
    x = 94,585.08/141.75
  6. Step 6: Final answer
    x = 667.27

Related Problems

Find third proportional to 70.88 and 153.77
Half scale
Find third proportional to 283.50 and 615.09
Double scale
Find third proportional to 144 and 312
Similar ratio
Find third proportional to 212.63 and 461.32
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.