Home / 100,688-219,148

Finding the Third Proportional to 100,688 and 219,148

Calculator

Solution

The third proportional to 100,688 and 219,148 is: 476,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,688 : 219,148 = 219,148 : x
  2. Step 2: Convert to fraction form
    100,688/219,148 = 219,148/x
  3. Step 3: Cross multiply
    100,688x = 219,148 × 219,148
  4. Step 4: Simplify right side
    100,688x = 48,025,845,904
  5. Step 5: Solve for x
    x = 48,025,845,904/100,688
  6. Step 6: Final answer
    x = 476,976.86

Related Problems

Find third proportional to 50,344 and 109,574
Half scale
Find third proportional to 201,376 and 438,296
Double scale
Find third proportional to 100,690 and 219,152
Similar ratio
Find third proportional to 151,032 and 328,722
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.