Home / 128,076-275,880

Finding the Third Proportional to 128,076 and 275,880

Calculator

Solution

The third proportional to 128,076 and 275,880 is: 594,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,076 : 275,880 = 275,880 : x
  2. Step 2: Convert to fraction form
    128,076/275,880 = 275,880/x
  3. Step 3: Cross multiply
    128,076x = 275,880 × 275,880
  4. Step 4: Simplify right side
    128,076x = 76,109,774,400
  5. Step 5: Solve for x
    x = 76,109,774,400/128,076
  6. Step 6: Final answer
    x = 594,254.77

Related Problems

Find third proportional to 64,038 and 137,940
Half scale
Find third proportional to 256,152 and 551,760
Double scale
Find third proportional to 128,078 and 275,884
Similar ratio
Find third proportional to 192,114 and 413,820
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.