Home / 318,852-488,321

Finding the Third Proportional to 318,852 and 488,321

Calculator

Solution

The third proportional to 318,852 and 488,321 is: 747,862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,852 : 488,321 = 488,321 : x
  2. Step 2: Convert to fraction form
    318,852/488,321 = 488,321/x
  3. Step 3: Cross multiply
    318,852x = 488,321 × 488,321
  4. Step 4: Simplify right side
    318,852x = 238,457,399,041
  5. Step 5: Solve for x
    x = 238,457,399,041/318,852
  6. Step 6: Final answer
    x = 747,862.33

Related Problems

Find third proportional to 159,426 and 244,160.50
Half scale
Find third proportional to 637,704 and 976,642
Double scale
Find third proportional to 318,854 and 488,324
Similar ratio
Find third proportional to 478,278 and 732,481.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.