Home / 120,620-177,316

Finding the Third Proportional to 120,620 and 177,316

Calculator

Solution

The third proportional to 120,620 and 177,316 is: 260,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,620 : 177,316 = 177,316 : x
  2. Step 2: Convert to fraction form
    120,620/177,316 = 177,316/x
  3. Step 3: Cross multiply
    120,620x = 177,316 × 177,316
  4. Step 4: Simplify right side
    120,620x = 31,440,963,856
  5. Step 5: Solve for x
    x = 31,440,963,856/120,620
  6. Step 6: Final answer
    x = 260,661.28

Related Problems

Find third proportional to 60,310 and 88,658
Half scale
Find third proportional to 241,240 and 354,632
Double scale
Find third proportional to 120,622 and 177,319
Similar ratio
Find third proportional to 180,930 and 265,974
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.