Home / 117,488-178,990

Finding the Third Proportional to 117,488 and 178,990

Calculator

Solution

The third proportional to 117,488 and 178,990 is: 272,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,488 : 178,990 = 178,990 : x
  2. Step 2: Convert to fraction form
    117,488/178,990 = 178,990/x
  3. Step 3: Cross multiply
    117,488x = 178,990 × 178,990
  4. Step 4: Simplify right side
    117,488x = 32,037,420,100
  5. Step 5: Solve for x
    x = 32,037,420,100/117,488
  6. Step 6: Final answer
    x = 272,686.74

Related Problems

Find third proportional to 58,744 and 89,495
Half scale
Find third proportional to 234,976 and 357,980
Double scale
Find third proportional to 117,490 and 178,993
Similar ratio
Find third proportional to 176,232 and 268,485
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.