Home / 318,295-460,309

Finding the Third Proportional to 318,295 and 460,309

Calculator

Solution

The third proportional to 318,295 and 460,309 is: 665,685.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,295 : 460,309 = 460,309 : x
  2. Step 2: Convert to fraction form
    318,295/460,309 = 460,309/x
  3. Step 3: Cross multiply
    318,295x = 460,309 × 460,309
  4. Step 4: Simplify right side
    318,295x = 211,884,375,481
  5. Step 5: Solve for x
    x = 211,884,375,481/318,295
  6. Step 6: Final answer
    x = 665,685.53

Related Problems

Find third proportional to 159,147.50 and 230,154.50
Half scale
Find third proportional to 636,590 and 920,618
Double scale
Find third proportional to 318,297 and 460,312
Similar ratio
Find third proportional to 477,442.50 and 690,463.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.