Home / 149,850-318,771

Finding the Third Proportional to 149,850 and 318,771

Calculator

Solution

The third proportional to 149,850 and 318,771 is: 678,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,850 : 318,771 = 318,771 : x
  2. Step 2: Convert to fraction form
    149,850/318,771 = 318,771/x
  3. Step 3: Cross multiply
    149,850x = 318,771 × 318,771
  4. Step 4: Simplify right side
    149,850x = 101,614,950,441
  5. Step 5: Solve for x
    x = 101,614,950,441/149,850
  6. Step 6: Final answer
    x = 678,111.11

Related Problems

Find third proportional to 74,925 and 159,385.50
Half scale
Find third proportional to 299,700 and 637,542
Double scale
Find third proportional to 149,852 and 318,775
Similar ratio
Find third proportional to 224,775 and 478,156.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.