Home / 154,614-220,509

Finding the Third Proportional to 154,614 and 220,509

Calculator

Solution

The third proportional to 154,614 and 220,509 is: 314,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,614 : 220,509 = 220,509 : x
  2. Step 2: Convert to fraction form
    154,614/220,509 = 220,509/x
  3. Step 3: Cross multiply
    154,614x = 220,509 × 220,509
  4. Step 4: Simplify right side
    154,614x = 48,624,219,081
  5. Step 5: Solve for x
    x = 48,624,219,081/154,614
  6. Step 6: Final answer
    x = 314,487.82

Related Problems

Find third proportional to 77,307 and 110,254.50
Half scale
Find third proportional to 309,228 and 441,018
Double scale
Find third proportional to 154,616 and 220,512
Similar ratio
Find third proportional to 231,921 and 330,763.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.