Home / 180,490-280,579

Finding the Third Proportional to 180,490 and 280,579

Calculator

Solution

The third proportional to 180,490 and 280,579 is: 436,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,490 : 280,579 = 280,579 : x
  2. Step 2: Convert to fraction form
    180,490/280,579 = 280,579/x
  3. Step 3: Cross multiply
    180,490x = 280,579 × 280,579
  4. Step 4: Simplify right side
    180,490x = 78,724,575,241
  5. Step 5: Solve for x
    x = 78,724,575,241/180,490
  6. Step 6: Final answer
    x = 436,171.40

Related Problems

Find third proportional to 90,245 and 140,289.50
Half scale
Find third proportional to 360,980 and 561,158
Double scale
Find third proportional to 180,492 and 280,582
Similar ratio
Find third proportional to 270,735 and 420,868.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.