Home / 122,315-172,246

Finding the Third Proportional to 122,315 and 172,246

Calculator

Solution

The third proportional to 122,315 and 172,246 is: 242,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,315 : 172,246 = 172,246 : x
  2. Step 2: Convert to fraction form
    122,315/172,246 = 172,246/x
  3. Step 3: Cross multiply
    122,315x = 172,246 × 172,246
  4. Step 4: Simplify right side
    122,315x = 29,668,684,516
  5. Step 5: Solve for x
    x = 29,668,684,516/122,315
  6. Step 6: Final answer
    x = 242,559.66

Related Problems

Find third proportional to 61,157.50 and 86,123
Half scale
Find third proportional to 244,630 and 344,492
Double scale
Find third proportional to 122,317 and 172,249
Similar ratio
Find third proportional to 183,472.50 and 258,369
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.