Home / 216,142-347,277

Finding the Third Proportional to 216,142 and 347,277

Calculator

Solution

The third proportional to 216,142 and 347,277 is: 557,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,142 : 347,277 = 347,277 : x
  2. Step 2: Convert to fraction form
    216,142/347,277 = 347,277/x
  3. Step 3: Cross multiply
    216,142x = 347,277 × 347,277
  4. Step 4: Simplify right side
    216,142x = 120,601,314,729
  5. Step 5: Solve for x
    x = 120,601,314,729/216,142
  6. Step 6: Final answer
    x = 557,972.60

Related Problems

Find third proportional to 108,071 and 173,638.50
Half scale
Find third proportional to 432,284 and 694,554
Double scale
Find third proportional to 216,144 and 347,280
Similar ratio
Find third proportional to 324,213 and 520,915.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.