Home / 170,238-257,727

Finding the Third Proportional to 170,238 and 257,727

Calculator

Solution

The third proportional to 170,238 and 257,727 is: 390,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,238 : 257,727 = 257,727 : x
  2. Step 2: Convert to fraction form
    170,238/257,727 = 257,727/x
  3. Step 3: Cross multiply
    170,238x = 257,727 × 257,727
  4. Step 4: Simplify right side
    170,238x = 66,423,206,529
  5. Step 5: Solve for x
    x = 66,423,206,529/170,238
  6. Step 6: Final answer
    x = 390,178.49

Related Problems

Find third proportional to 85,119 and 128,863.50
Half scale
Find third proportional to 340,476 and 515,454
Double scale
Find third proportional to 170,240 and 257,730
Similar ratio
Find third proportional to 255,357 and 386,590.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.