Home / 138,618-208,912.50

Finding the Third Proportional to 138,618 and 208,912.50

Calculator

Solution

The third proportional to 138,618 and 208,912.50 is: 314,854.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,618 : 208,912.50 = 208,912.50 : x
  2. Step 2: Convert to fraction form
    138,618/208,912.50 = 208,912.50/x
  3. Step 3: Cross multiply
    138,618x = 208,912.50 × 208,912.50
  4. Step 4: Simplify right side
    138,618x = 43,644,432,656.25
  5. Step 5: Solve for x
    x = 43,644,432,656.25/138,618
  6. Step 6: Final answer
    x = 314,854.01

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.