Home / 154,856-339,220

Finding the Third Proportional to 154,856 and 339,220

Calculator

Solution

The third proportional to 154,856 and 339,220 is: 743,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,856 : 339,220 = 339,220 : x
  2. Step 2: Convert to fraction form
    154,856/339,220 = 339,220/x
  3. Step 3: Cross multiply
    154,856x = 339,220 × 339,220
  4. Step 4: Simplify right side
    154,856x = 115,070,208,400
  5. Step 5: Solve for x
    x = 115,070,208,400/154,856
  6. Step 6: Final answer
    x = 743,078.79

Related Problems

Find third proportional to 77,428 and 169,610
Half scale
Find third proportional to 309,712 and 678,440
Double scale
Find third proportional to 154,858 and 339,224
Similar ratio
Find third proportional to 232,284 and 508,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.