Home / 69,516-151,780

Finding the Third Proportional to 69,516 and 151,780

Calculator

Solution

The third proportional to 69,516 and 151,780 is: 331,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,516 : 151,780 = 151,780 : x
  2. Step 2: Convert to fraction form
    69,516/151,780 = 151,780/x
  3. Step 3: Cross multiply
    69,516x = 151,780 × 151,780
  4. Step 4: Simplify right side
    69,516x = 23,037,168,400
  5. Step 5: Solve for x
    x = 23,037,168,400/69,516
  6. Step 6: Final answer
    x = 331,393.76

Related Problems

Find third proportional to 34,758 and 75,890
Half scale
Find third proportional to 139,032 and 303,560
Double scale
Find third proportional to 69,518 and 151,784
Similar ratio
Find third proportional to 104,274 and 227,670
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.