Home / 128,346-281,492

Finding the Third Proportional to 128,346 and 281,492

Calculator

Solution

The third proportional to 128,346 and 281,492 is: 617,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,346 : 281,492 = 281,492 : x
  2. Step 2: Convert to fraction form
    128,346/281,492 = 281,492/x
  3. Step 3: Cross multiply
    128,346x = 281,492 × 281,492
  4. Step 4: Simplify right side
    128,346x = 79,237,746,064
  5. Step 5: Solve for x
    x = 79,237,746,064/128,346
  6. Step 6: Final answer
    x = 617,376.05

Related Problems

Find third proportional to 64,173 and 140,746
Half scale
Find third proportional to 256,692 and 562,984
Double scale
Find third proportional to 128,348 and 281,496
Similar ratio
Find third proportional to 192,519 and 422,238
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.