Home / 78,249-168,291

Finding the Third Proportional to 78,249 and 168,291

Calculator

Solution

The third proportional to 78,249 and 168,291 is: 361,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,249 : 168,291 = 168,291 : x
  2. Step 2: Convert to fraction form
    78,249/168,291 = 168,291/x
  3. Step 3: Cross multiply
    78,249x = 168,291 × 168,291
  4. Step 4: Simplify right side
    78,249x = 28,321,860,681
  5. Step 5: Solve for x
    x = 28,321,860,681/78,249
  6. Step 6: Final answer
    x = 361,945.34

Related Problems

Find third proportional to 39,124.50 and 84,145.50
Half scale
Find third proportional to 156,498 and 336,582
Double scale
Find third proportional to 78,251 and 168,295
Similar ratio
Find third proportional to 117,373.50 and 252,436.50
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.