Home / 211,205-437,381

Finding the Third Proportional to 211,205 and 437,381

Calculator

Solution

The third proportional to 211,205 and 437,381 is: 905,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,205 : 437,381 = 437,381 : x
  2. Step 2: Convert to fraction form
    211,205/437,381 = 437,381/x
  3. Step 3: Cross multiply
    211,205x = 437,381 × 437,381
  4. Step 4: Simplify right side
    211,205x = 191,302,139,161
  5. Step 5: Solve for x
    x = 191,302,139,161/211,205
  6. Step 6: Final answer
    x = 905,765.20

Related Problems

Find third proportional to 105,602.50 and 218,690.50
Half scale
Find third proportional to 422,410 and 874,762
Double scale
Find third proportional to 211,207 and 437,385
Similar ratio
Find third proportional to 316,807.50 and 656,071.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.