Home / 130,940-201,380

Finding the Third Proportional to 130,940 and 201,380

Calculator

Solution

The third proportional to 130,940 and 201,380 is: 309,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,940 : 201,380 = 201,380 : x
  2. Step 2: Convert to fraction form
    130,940/201,380 = 201,380/x
  3. Step 3: Cross multiply
    130,940x = 201,380 × 201,380
  4. Step 4: Simplify right side
    130,940x = 40,553,904,400
  5. Step 5: Solve for x
    x = 40,553,904,400/130,940
  6. Step 6: Final answer
    x = 309,713.64

Related Problems

Find third proportional to 65,470 and 100,690
Half scale
Find third proportional to 261,880 and 402,760
Double scale
Find third proportional to 130,942 and 201,383
Similar ratio
Find third proportional to 196,410 and 302,070
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.