Home / 258,126-553,619

Finding the Third Proportional to 258,126 and 553,619

Calculator

Solution

The third proportional to 258,126 and 553,619 is: 1,187,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,126 : 553,619 = 553,619 : x
  2. Step 2: Convert to fraction form
    258,126/553,619 = 553,619/x
  3. Step 3: Cross multiply
    258,126x = 553,619 × 553,619
  4. Step 4: Simplify right side
    258,126x = 306,493,997,161
  5. Step 5: Solve for x
    x = 306,493,997,161/258,126
  6. Step 6: Final answer
    x = 1,187,381.35

Related Problems

Find third proportional to 129,063 and 276,809.50
Half scale
Find third proportional to 516,252 and 1,107,238
Double scale
Find third proportional to 258,128 and 553,623
Similar ratio
Find third proportional to 387,189 and 830,428.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.