Home / 187,980-287,922

Finding the Third Proportional to 187,980 and 287,922

Calculator

Solution

The third proportional to 187,980 and 287,922 is: 440,999.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,980 : 287,922 = 287,922 : x
  2. Step 2: Convert to fraction form
    187,980/287,922 = 287,922/x
  3. Step 3: Cross multiply
    187,980x = 287,922 × 287,922
  4. Step 4: Simplify right side
    187,980x = 82,899,078,084
  5. Step 5: Solve for x
    x = 82,899,078,084/187,980
  6. Step 6: Final answer
    x = 440,999.46

Related Problems

Find third proportional to 93,990 and 143,961
Half scale
Find third proportional to 375,960 and 575,844
Double scale
Find third proportional to 187,982 and 287,925
Similar ratio
Find third proportional to 281,970 and 431,883
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.