Home / 140,969-218,618

Finding the Third Proportional to 140,969 and 218,618

Calculator

Solution

The third proportional to 140,969 and 218,618 is: 339,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,969 : 218,618 = 218,618 : x
  2. Step 2: Convert to fraction form
    140,969/218,618 = 218,618/x
  3. Step 3: Cross multiply
    140,969x = 218,618 × 218,618
  4. Step 4: Simplify right side
    140,969x = 47,793,829,924
  5. Step 5: Solve for x
    x = 47,793,829,924/140,969
  6. Step 6: Final answer
    x = 339,037.87

Related Problems

Find third proportional to 70,484.50 and 109,309
Half scale
Find third proportional to 281,938 and 437,236
Double scale
Find third proportional to 140,971 and 218,621
Similar ratio
Find third proportional to 211,453.50 and 327,927
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.