Home / 218,307-347,143.50

Finding the Third Proportional to 218,307 and 347,143.50

Calculator

Solution

The third proportional to 218,307 and 347,143.50 is: 552,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,307 : 347,143.50 = 347,143.50 : x
  2. Step 2: Convert to fraction form
    218,307/347,143.50 = 347,143.50/x
  3. Step 3: Cross multiply
    218,307x = 347,143.50 × 347,143.50
  4. Step 4: Simplify right side
    218,307x = 120,508,609,592.25
  5. Step 5: Solve for x
    x = 120,508,609,592.25/218,307
  6. Step 6: Final answer
    x = 552,014.41

Related Problems

Find third proportional to 109,153.50 and 173,571.75
Half scale
Find third proportional to 436,614 and 694,287
Double scale
Find third proportional to 218,309 and 347,147
Similar ratio
Find third proportional to 327,460.50 and 520,715.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.