Home / 272,439-425,217

Finding the Third Proportional to 272,439 and 425,217

Calculator

Solution

The third proportional to 272,439 and 425,217 is: 663,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,439 : 425,217 = 425,217 : x
  2. Step 2: Convert to fraction form
    272,439/425,217 = 425,217/x
  3. Step 3: Cross multiply
    272,439x = 425,217 × 425,217
  4. Step 4: Simplify right side
    272,439x = 180,809,497,089
  5. Step 5: Solve for x
    x = 180,809,497,089/272,439
  6. Step 6: Final answer
    x = 663,669.65

Related Problems

Find third proportional to 136,219.50 and 212,608.50
Half scale
Find third proportional to 544,878 and 850,434
Double scale
Find third proportional to 272,441 and 425,220
Similar ratio
Find third proportional to 408,658.50 and 637,825.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.