Home / 137,988-281,808

Finding the Third Proportional to 137,988 and 281,808

Calculator

Solution

The third proportional to 137,988 and 281,808 is: 575,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,988 : 281,808 = 281,808 : x
  2. Step 2: Convert to fraction form
    137,988/281,808 = 281,808/x
  3. Step 3: Cross multiply
    137,988x = 281,808 × 281,808
  4. Step 4: Simplify right side
    137,988x = 79,415,748,864
  5. Step 5: Solve for x
    x = 79,415,748,864/137,988
  6. Step 6: Final answer
    x = 575,526.49

Related Problems

Find third proportional to 68,994 and 140,904
Half scale
Find third proportional to 275,976 and 563,616
Double scale
Find third proportional to 137,990 and 281,812
Similar ratio
Find third proportional to 206,982 and 422,712
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.