Home / 213,298-319,620

Finding the Third Proportional to 213,298 and 319,620

Calculator

Solution

The third proportional to 213,298 and 319,620 is: 478,940.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,298 : 319,620 = 319,620 : x
  2. Step 2: Convert to fraction form
    213,298/319,620 = 319,620/x
  3. Step 3: Cross multiply
    213,298x = 319,620 × 319,620
  4. Step 4: Simplify right side
    213,298x = 102,156,944,400
  5. Step 5: Solve for x
    x = 102,156,944,400/213,298
  6. Step 6: Final answer
    x = 478,940.00

Related Problems

Find third proportional to 106,649 and 159,810
Half scale
Find third proportional to 426,596 and 639,240
Double scale
Find third proportional to 213,300 and 319,623
Similar ratio
Find third proportional to 319,947 and 479,430
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.