Home / 143,127-210,315

Finding the Third Proportional to 143,127 and 210,315

Calculator

Solution

The third proportional to 143,127 and 210,315 is: 309,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,127 : 210,315 = 210,315 : x
  2. Step 2: Convert to fraction form
    143,127/210,315 = 210,315/x
  3. Step 3: Cross multiply
    143,127x = 210,315 × 210,315
  4. Step 4: Simplify right side
    143,127x = 44,232,399,225
  5. Step 5: Solve for x
    x = 44,232,399,225/143,127
  6. Step 6: Final answer
    x = 309,043.01

Related Problems

Find third proportional to 71,563.50 and 105,157.50
Half scale
Find third proportional to 286,254 and 420,630
Double scale
Find third proportional to 143,129 and 210,318
Similar ratio
Find third proportional to 214,690.50 and 315,472.50
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.