Home / 128,464-197,706

Finding the Third Proportional to 128,464 and 197,706

Calculator

Solution

The third proportional to 128,464 and 197,706 is: 304,269.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,464 : 197,706 = 197,706 : x
  2. Step 2: Convert to fraction form
    128,464/197,706 = 197,706/x
  3. Step 3: Cross multiply
    128,464x = 197,706 × 197,706
  4. Step 4: Simplify right side
    128,464x = 39,087,662,436
  5. Step 5: Solve for x
    x = 39,087,662,436/128,464
  6. Step 6: Final answer
    x = 304,269.39

Related Problems

Find third proportional to 64,232 and 98,853
Half scale
Find third proportional to 256,928 and 395,412
Double scale
Find third proportional to 128,466 and 197,709
Similar ratio
Find third proportional to 192,696 and 296,559
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.