Home / 142,623-305,487

Finding the Third Proportional to 142,623 and 305,487

Calculator

Solution

The third proportional to 142,623 and 305,487 is: 654,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,623 : 305,487 = 305,487 : x
  2. Step 2: Convert to fraction form
    142,623/305,487 = 305,487/x
  3. Step 3: Cross multiply
    142,623x = 305,487 × 305,487
  4. Step 4: Simplify right side
    142,623x = 93,322,307,169
  5. Step 5: Solve for x
    x = 93,322,307,169/142,623
  6. Step 6: Final answer
    x = 654,328.59

Related Problems

Find third proportional to 71,311.50 and 152,743.50
Half scale
Find third proportional to 285,246 and 610,974
Double scale
Find third proportional to 142,625 and 305,491
Similar ratio
Find third proportional to 213,934.50 and 458,230.50
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.