Home / 99,608-217,840

Finding the Third Proportional to 99,608 and 217,840

Calculator

Solution

The third proportional to 99,608 and 217,840 is: 476,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608 : 217,840 = 217,840 : x
  2. Step 2: Convert to fraction form
    99,608/217,840 = 217,840/x
  3. Step 3: Cross multiply
    99,608x = 217,840 × 217,840
  4. Step 4: Simplify right side
    99,608x = 47,454,265,600
  5. Step 5: Solve for x
    x = 47,454,265,600/99,608
  6. Step 6: Final answer
    x = 476,410.18

Related Problems

Find third proportional to 49,804 and 108,920
Half scale
Find third proportional to 199,216 and 435,680
Double scale
Find third proportional to 99,610 and 217,844
Similar ratio
Find third proportional to 149,412 and 326,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.