Home / 212,467.50-489,303.50

Finding the Third Proportional to 212,467.50 and 489,303.50

Calculator

Solution

The third proportional to 212,467.50 and 489,303.50 is: 1,126,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,467.50 : 489,303.50 = 489,303.50 : x
  2. Step 2: Convert to fraction form
    212,467.50/489,303.50 = 489,303.50/x
  3. Step 3: Cross multiply
    212,467.50x = 489,303.50 × 489,303.50
  4. Step 4: Simplify right side
    212,467.50x = 239,417,915,112.25
  5. Step 5: Solve for x
    x = 239,417,915,112.25/212,467.50
  6. Step 6: Final answer
    x = 1,126,844.88

Related Problems

Find third proportional to 106,233.75 and 244,651.75
Half scale
Find third proportional to 424,935 and 978,607
Double scale
Find third proportional to 212,470 and 489,308
Similar ratio
Find third proportional to 318,701.25 and 733,955.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.