Home / 257,816-555,126

Finding the Third Proportional to 257,816 and 555,126

Calculator

Solution

The third proportional to 257,816 and 555,126 is: 1,195,289.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,816 : 555,126 = 555,126 : x
  2. Step 2: Convert to fraction form
    257,816/555,126 = 555,126/x
  3. Step 3: Cross multiply
    257,816x = 555,126 × 555,126
  4. Step 4: Simplify right side
    257,816x = 308,164,875,876
  5. Step 5: Solve for x
    x = 308,164,875,876/257,816
  6. Step 6: Final answer
    x = 1,195,289.96

Related Problems

Find third proportional to 128,908 and 277,563
Half scale
Find third proportional to 515,632 and 1,110,252
Double scale
Find third proportional to 257,818 and 555,130
Similar ratio
Find third proportional to 386,724 and 832,689
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.