Home / 128,094-278,340

Finding the Third Proportional to 128,094 and 278,340

Calculator

Solution

The third proportional to 128,094 and 278,340 is: 604,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,094 : 278,340 = 278,340 : x
  2. Step 2: Convert to fraction form
    128,094/278,340 = 278,340/x
  3. Step 3: Cross multiply
    128,094x = 278,340 × 278,340
  4. Step 4: Simplify right side
    128,094x = 77,473,155,600
  5. Step 5: Solve for x
    x = 77,473,155,600/128,094
  6. Step 6: Final answer
    x = 604,814.87

Related Problems

Find third proportional to 64,047 and 139,170
Half scale
Find third proportional to 256,188 and 556,680
Double scale
Find third proportional to 128,096 and 278,344
Similar ratio
Find third proportional to 192,141 and 417,510
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.