Home / 138,169.50-305,382

Finding the Third Proportional to 138,169.50 and 305,382

Calculator

Solution

The third proportional to 138,169.50 and 305,382 is: 674,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,169.50 : 305,382 = 305,382 : x
  2. Step 2: Convert to fraction form
    138,169.50/305,382 = 305,382/x
  3. Step 3: Cross multiply
    138,169.50x = 305,382 × 305,382
  4. Step 4: Simplify right side
    138,169.50x = 93,258,165,924
  5. Step 5: Solve for x
    x = 93,258,165,924/138,169.50
  6. Step 6: Final answer
    x = 674,954.79

Related Problems

Find third proportional to 69,084.75 and 152,691
Half scale
Find third proportional to 276,339 and 610,764
Double scale
Find third proportional to 138,172 and 305,386
Similar ratio
Find third proportional to 207,254.25 and 458,073
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.