Home / 255,749-557,290

Finding the Third Proportional to 255,749 and 557,290

Calculator

Solution

The third proportional to 255,749 and 557,290 is: 1,214,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,749 : 557,290 = 557,290 : x
  2. Step 2: Convert to fraction form
    255,749/557,290 = 557,290/x
  3. Step 3: Cross multiply
    255,749x = 557,290 × 557,290
  4. Step 4: Simplify right side
    255,749x = 310,572,144,100
  5. Step 5: Solve for x
    x = 310,572,144,100/255,749
  6. Step 6: Final answer
    x = 1,214,363.08

Related Problems

Find third proportional to 127,874.50 and 278,645
Half scale
Find third proportional to 511,498 and 1,114,580
Double scale
Find third proportional to 255,751 and 557,294
Similar ratio
Find third proportional to 383,623.50 and 835,935
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.