Home / 261,292-381,855

Finding the Third Proportional to 261,292 and 381,855

Calculator

Solution

The third proportional to 261,292 and 381,855 is: 558,047.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,292 : 381,855 = 381,855 : x
  2. Step 2: Convert to fraction form
    261,292/381,855 = 381,855/x
  3. Step 3: Cross multiply
    261,292x = 381,855 × 381,855
  4. Step 4: Simplify right side
    261,292x = 145,813,241,025
  5. Step 5: Solve for x
    x = 145,813,241,025/261,292
  6. Step 6: Final answer
    x = 558,047.09

Related Problems

Find third proportional to 130,646 and 190,927.50
Half scale
Find third proportional to 522,584 and 763,710
Double scale
Find third proportional to 261,294 and 381,858
Similar ratio
Find third proportional to 391,938 and 572,782.50
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.