Home / 261,287-381,848

Finding the Third Proportional to 261,287 and 381,848

Calculator

Solution

The third proportional to 261,287 and 381,848 is: 558,037.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,287 : 381,848 = 381,848 : x
  2. Step 2: Convert to fraction form
    261,287/381,848 = 381,848/x
  3. Step 3: Cross multiply
    261,287x = 381,848 × 381,848
  4. Step 4: Simplify right side
    261,287x = 145,807,895,104
  5. Step 5: Solve for x
    x = 145,807,895,104/261,287
  6. Step 6: Final answer
    x = 558,037.31

Related Problems

Find third proportional to 130,643.50 and 190,924
Half scale
Find third proportional to 522,574 and 763,696
Double scale
Find third proportional to 261,289 and 381,851
Similar ratio
Find third proportional to 391,930.50 and 572,772
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.