Home / 71,778-151,402

Finding the Third Proportional to 71,778 and 151,402

Calculator

Solution

The third proportional to 71,778 and 151,402 is: 319,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,778 : 151,402 = 151,402 : x
  2. Step 2: Convert to fraction form
    71,778/151,402 = 151,402/x
  3. Step 3: Cross multiply
    71,778x = 151,402 × 151,402
  4. Step 4: Simplify right side
    71,778x = 22,922,565,604
  5. Step 5: Solve for x
    x = 22,922,565,604/71,778
  6. Step 6: Final answer
    x = 319,353.64

Related Problems

Find third proportional to 35,889 and 75,701
Half scale
Find third proportional to 143,556 and 302,804
Double scale
Find third proportional to 71,780 and 151,406
Similar ratio
Find third proportional to 107,667 and 227,103
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.