Home / 258,240-379,482

Finding the Third Proportional to 258,240 and 379,482

Calculator

Solution

The third proportional to 258,240 and 379,482 is: 557,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,240 : 379,482 = 379,482 : x
  2. Step 2: Convert to fraction form
    258,240/379,482 = 379,482/x
  3. Step 3: Cross multiply
    258,240x = 379,482 × 379,482
  4. Step 4: Simplify right side
    258,240x = 144,006,588,324
  5. Step 5: Solve for x
    x = 144,006,588,324/258,240
  6. Step 6: Final answer
    x = 557,646.33

Related Problems

Find third proportional to 129,120 and 189,741
Half scale
Find third proportional to 516,480 and 758,964
Double scale
Find third proportional to 258,242 and 379,485
Similar ratio
Find third proportional to 387,360 and 569,223
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.