Home / 137,205-300,645

Finding the Third Proportional to 137,205 and 300,645

Calculator

Solution

The third proportional to 137,205 and 300,645 is: 658,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,205 : 300,645 = 300,645 : x
  2. Step 2: Convert to fraction form
    137,205/300,645 = 300,645/x
  3. Step 3: Cross multiply
    137,205x = 300,645 × 300,645
  4. Step 4: Simplify right side
    137,205x = 90,387,416,025
  5. Step 5: Solve for x
    x = 90,387,416,025/137,205
  6. Step 6: Final answer
    x = 658,776.40

Related Problems

Find third proportional to 68,602.50 and 150,322.50
Half scale
Find third proportional to 274,410 and 601,290
Double scale
Find third proportional to 137,207 and 300,649
Similar ratio
Find third proportional to 205,807.50 and 450,967.50
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.