Home / 213,040-306,888

Finding the Third Proportional to 213,040 and 306,888

Calculator

Solution

The third proportional to 213,040 and 306,888 is: 442,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,040 : 306,888 = 306,888 : x
  2. Step 2: Convert to fraction form
    213,040/306,888 = 306,888/x
  3. Step 3: Cross multiply
    213,040x = 306,888 × 306,888
  4. Step 4: Simplify right side
    213,040x = 94,180,244,544
  5. Step 5: Solve for x
    x = 94,180,244,544/213,040
  6. Step 6: Final answer
    x = 442,077.75

Related Problems

Find third proportional to 106,520 and 153,444
Half scale
Find third proportional to 426,080 and 613,776
Double scale
Find third proportional to 213,042 and 306,891
Similar ratio
Find third proportional to 319,560 and 460,332
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.