Home / 208,426-424,218

Finding the Third Proportional to 208,426 and 424,218

Calculator

Solution

The third proportional to 208,426 and 424,218 is: 863,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,426 : 424,218 = 424,218 : x
  2. Step 2: Convert to fraction form
    208,426/424,218 = 424,218/x
  3. Step 3: Cross multiply
    208,426x = 424,218 × 424,218
  4. Step 4: Simplify right side
    208,426x = 179,960,911,524
  5. Step 5: Solve for x
    x = 179,960,911,524/208,426
  6. Step 6: Final answer
    x = 863,428.32

Related Problems

Find third proportional to 104,213 and 212,109
Half scale
Find third proportional to 416,852 and 848,436
Double scale
Find third proportional to 208,428 and 424,222
Similar ratio
Find third proportional to 312,639 and 636,327
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.