Home / 100,681-219,138

Finding the Third Proportional to 100,681 and 219,138

Calculator

Solution

The third proportional to 100,681 and 219,138 is: 476,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,681 : 219,138 = 219,138 : x
  2. Step 2: Convert to fraction form
    100,681/219,138 = 219,138/x
  3. Step 3: Cross multiply
    100,681x = 219,138 × 219,138
  4. Step 4: Simplify right side
    100,681x = 48,021,463,044
  5. Step 5: Solve for x
    x = 48,021,463,044/100,681
  6. Step 6: Final answer
    x = 476,966.49

Related Problems

Find third proportional to 50,340.50 and 109,569
Half scale
Find third proportional to 201,362 and 438,276
Double scale
Find third proportional to 100,683 and 219,142
Similar ratio
Find third proportional to 151,021.50 and 328,707
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.