Home / 217,514-306,312

Finding the Third Proportional to 217,514 and 306,312

Calculator

Solution

The third proportional to 217,514 and 306,312 is: 431,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,514 : 306,312 = 306,312 : x
  2. Step 2: Convert to fraction form
    217,514/306,312 = 306,312/x
  3. Step 3: Cross multiply
    217,514x = 306,312 × 306,312
  4. Step 4: Simplify right side
    217,514x = 93,827,041,344
  5. Step 5: Solve for x
    x = 93,827,041,344/217,514
  6. Step 6: Final answer
    x = 431,360.93

Related Problems

Find third proportional to 108,757 and 153,156
Half scale
Find third proportional to 435,028 and 612,624
Double scale
Find third proportional to 217,516 and 306,315
Similar ratio
Find third proportional to 326,271 and 459,468
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.