Home / 143,880-304,128

Finding the Third Proportional to 143,880 and 304,128

Calculator

Solution

The third proportional to 143,880 and 304,128 is: 642,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,880 : 304,128 = 304,128 : x
  2. Step 2: Convert to fraction form
    143,880/304,128 = 304,128/x
  3. Step 3: Cross multiply
    143,880x = 304,128 × 304,128
  4. Step 4: Simplify right side
    143,880x = 92,493,840,384
  5. Step 5: Solve for x
    x = 92,493,840,384/143,880
  6. Step 6: Final answer
    x = 642,854.05

Related Problems

Find third proportional to 71,940 and 152,064
Half scale
Find third proportional to 287,760 and 608,256
Double scale
Find third proportional to 143,882 and 304,132
Similar ratio
Find third proportional to 215,820 and 456,192
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.