Home / 172,469-257,641

Finding the Third Proportional to 172,469 and 257,641

Calculator

Solution

The third proportional to 172,469 and 257,641 is: 384,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,469 : 257,641 = 257,641 : x
  2. Step 2: Convert to fraction form
    172,469/257,641 = 257,641/x
  3. Step 3: Cross multiply
    172,469x = 257,641 × 257,641
  4. Step 4: Simplify right side
    172,469x = 66,378,884,881
  5. Step 5: Solve for x
    x = 66,378,884,881/172,469
  6. Step 6: Final answer
    x = 384,874.30

Related Problems

Find third proportional to 86,234.50 and 128,820.50
Half scale
Find third proportional to 344,938 and 515,282
Double scale
Find third proportional to 172,471 and 257,644
Similar ratio
Find third proportional to 258,703.50 and 386,461.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.