Home / 154,520-318,968

Finding the Third Proportional to 154,520 and 318,968

Calculator

Solution

The third proportional to 154,520 and 318,968 is: 658,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,520 : 318,968 = 318,968 : x
  2. Step 2: Convert to fraction form
    154,520/318,968 = 318,968/x
  3. Step 3: Cross multiply
    154,520x = 318,968 × 318,968
  4. Step 4: Simplify right side
    154,520x = 101,740,585,024
  5. Step 5: Solve for x
    x = 101,740,585,024/154,520
  6. Step 6: Final answer
    x = 658,429.88

Related Problems

Find third proportional to 77,260 and 159,484
Half scale
Find third proportional to 309,040 and 637,936
Double scale
Find third proportional to 154,522 and 318,972
Similar ratio
Find third proportional to 231,780 and 478,452
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.