Home / 211,026-310,905

Finding the Third Proportional to 211,026 and 310,905

Calculator

Solution

The third proportional to 211,026 and 310,905 is: 458,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,026 : 310,905 = 310,905 : x
  2. Step 2: Convert to fraction form
    211,026/310,905 = 310,905/x
  3. Step 3: Cross multiply
    211,026x = 310,905 × 310,905
  4. Step 4: Simplify right side
    211,026x = 96,661,919,025
  5. Step 5: Solve for x
    x = 96,661,919,025/211,026
  6. Step 6: Final answer
    x = 458,056.92

Related Problems

Find third proportional to 105,513 and 155,452.50
Half scale
Find third proportional to 422,052 and 621,810
Double scale
Find third proportional to 211,028 and 310,908
Similar ratio
Find third proportional to 316,539 and 466,357.50
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.