Home / 145,145-219,905

Finding the Third Proportional to 145,145 and 219,905

Calculator

Solution

The third proportional to 145,145 and 219,905 is: 333,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,145 : 219,905 = 219,905 : x
  2. Step 2: Convert to fraction form
    145,145/219,905 = 219,905/x
  3. Step 3: Cross multiply
    145,145x = 219,905 × 219,905
  4. Step 4: Simplify right side
    145,145x = 48,358,209,025
  5. Step 5: Solve for x
    x = 48,358,209,025/145,145
  6. Step 6: Final answer
    x = 333,171.72

Related Problems

Find third proportional to 72,572.50 and 109,952.50
Half scale
Find third proportional to 290,290 and 439,810
Double scale
Find third proportional to 145,147 and 219,908
Similar ratio
Find third proportional to 217,717.50 and 329,857.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.