Home / 180,374-280,385

Finding the Third Proportional to 180,374 and 280,385

Calculator

Solution

The third proportional to 180,374 and 280,385 is: 435,848.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,374 : 280,385 = 280,385 : x
  2. Step 2: Convert to fraction form
    180,374/280,385 = 280,385/x
  3. Step 3: Cross multiply
    180,374x = 280,385 × 280,385
  4. Step 4: Simplify right side
    180,374x = 78,615,748,225
  5. Step 5: Solve for x
    x = 78,615,748,225/180,374
  6. Step 6: Final answer
    x = 435,848.56

Related Problems

Find third proportional to 90,187 and 140,192.50
Half scale
Find third proportional to 360,748 and 560,770
Double scale
Find third proportional to 180,376 and 280,388
Similar ratio
Find third proportional to 270,561 and 420,577.50
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.