Home / 200,728-432,789

Finding the Third Proportional to 200,728 and 432,789

Calculator

Solution

The third proportional to 200,728 and 432,789 is: 933,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,728 : 432,789 = 432,789 : x
  2. Step 2: Convert to fraction form
    200,728/432,789 = 432,789/x
  3. Step 3: Cross multiply
    200,728x = 432,789 × 432,789
  4. Step 4: Simplify right side
    200,728x = 187,306,318,521
  5. Step 5: Solve for x
    x = 187,306,318,521/200,728
  6. Step 6: Final answer
    x = 933,134.98

Related Problems

Find third proportional to 100,364 and 216,394.50
Half scale
Find third proportional to 401,456 and 865,578
Double scale
Find third proportional to 200,730 and 432,793
Similar ratio
Find third proportional to 301,092 and 649,183.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.