Home / 213,159-328,488

Finding the Third Proportional to 213,159 and 328,488

Calculator

Solution

The third proportional to 213,159 and 328,488 is: 506,215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,159 : 328,488 = 328,488 : x
  2. Step 2: Convert to fraction form
    213,159/328,488 = 328,488/x
  3. Step 3: Cross multiply
    213,159x = 328,488 × 328,488
  4. Step 4: Simplify right side
    213,159x = 107,904,366,144
  5. Step 5: Solve for x
    x = 107,904,366,144/213,159
  6. Step 6: Final answer
    x = 506,215.39

Related Problems

Find third proportional to 106,579.50 and 164,244
Half scale
Find third proportional to 426,318 and 656,976
Double scale
Find third proportional to 213,161 and 328,491
Similar ratio
Find third proportional to 319,738.50 and 492,732
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.