Home / 216,990-328,546

Finding the Third Proportional to 216,990 and 328,546

Calculator

Solution

The third proportional to 216,990 and 328,546 is: 497,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,990 : 328,546 = 328,546 : x
  2. Step 2: Convert to fraction form
    216,990/328,546 = 328,546/x
  3. Step 3: Cross multiply
    216,990x = 328,546 × 328,546
  4. Step 4: Simplify right side
    216,990x = 107,942,474,116
  5. Step 5: Solve for x
    x = 107,942,474,116/216,990
  6. Step 6: Final answer
    x = 497,453.68

Related Problems

Find third proportional to 108,495 and 164,273
Half scale
Find third proportional to 433,980 and 657,092
Double scale
Find third proportional to 216,992 and 328,549
Similar ratio
Find third proportional to 325,485 and 492,819
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.