Home / 285,230-438,457

Finding the Third Proportional to 285,230 and 438,457

Calculator

Solution

The third proportional to 285,230 and 438,457 is: 673,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,230 : 438,457 = 438,457 : x
  2. Step 2: Convert to fraction form
    285,230/438,457 = 438,457/x
  3. Step 3: Cross multiply
    285,230x = 438,457 × 438,457
  4. Step 4: Simplify right side
    285,230x = 192,244,540,849
  5. Step 5: Solve for x
    x = 192,244,540,849/285,230
  6. Step 6: Final answer
    x = 673,998.32

Related Problems

Find third proportional to 142,615 and 219,228.50
Half scale
Find third proportional to 570,460 and 876,914
Double scale
Find third proportional to 285,232 and 438,460
Similar ratio
Find third proportional to 427,845 and 657,685.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.