Home / 142,364-302,287

Finding the Third Proportional to 142,364 and 302,287

Calculator

Solution

The third proportional to 142,364 and 302,287 is: 641,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,364 : 302,287 = 302,287 : x
  2. Step 2: Convert to fraction form
    142,364/302,287 = 302,287/x
  3. Step 3: Cross multiply
    142,364x = 302,287 × 302,287
  4. Step 4: Simplify right side
    142,364x = 91,377,430,369
  5. Step 5: Solve for x
    x = 91,377,430,369/142,364
  6. Step 6: Final answer
    x = 641,857.71

Related Problems

Find third proportional to 71,182 and 151,143.50
Half scale
Find third proportional to 284,728 and 604,574
Double scale
Find third proportional to 142,366 and 302,291
Similar ratio
Find third proportional to 213,546 and 453,430.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.