Home / 66,478-142,296

Finding the Third Proportional to 66,478 and 142,296

Calculator

Solution

The third proportional to 66,478 and 142,296 is: 304,584.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478 : 142,296 = 142,296 : x
  2. Step 2: Convert to fraction form
    66,478/142,296 = 142,296/x
  3. Step 3: Cross multiply
    66,478x = 142,296 × 142,296
  4. Step 4: Simplify right side
    66,478x = 20,248,151,616
  5. Step 5: Solve for x
    x = 20,248,151,616/66,478
  6. Step 6: Final answer
    x = 304,584.25

Related Problems

Find third proportional to 33,239 and 71,148
Half scale
Find third proportional to 132,956 and 284,592
Double scale
Find third proportional to 66,480 and 142,300
Similar ratio
Find third proportional to 99,717 and 213,444
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.