Home / 212,131-457,455

Finding the Third Proportional to 212,131 and 457,455

Calculator

Solution

The third proportional to 212,131 and 457,455 is: 986,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,131 : 457,455 = 457,455 : x
  2. Step 2: Convert to fraction form
    212,131/457,455 = 457,455/x
  3. Step 3: Cross multiply
    212,131x = 457,455 × 457,455
  4. Step 4: Simplify right side
    212,131x = 209,265,077,025
  5. Step 5: Solve for x
    x = 209,265,077,025/212,131
  6. Step 6: Final answer
    x = 986,489.84

Related Problems

Find third proportional to 106,065.50 and 228,727.50
Half scale
Find third proportional to 424,262 and 914,910
Double scale
Find third proportional to 212,133 and 457,459
Similar ratio
Find third proportional to 318,196.50 and 686,182.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.