Home / 258,900-347,688

Finding the Third Proportional to 258,900 and 347,688

Calculator

Solution

The third proportional to 258,900 and 347,688 is: 466,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,900 : 347,688 = 347,688 : x
  2. Step 2: Convert to fraction form
    258,900/347,688 = 347,688/x
  3. Step 3: Cross multiply
    258,900x = 347,688 × 347,688
  4. Step 4: Simplify right side
    258,900x = 120,886,945,344
  5. Step 5: Solve for x
    x = 120,886,945,344/258,900
  6. Step 6: Final answer
    x = 466,925.24

Related Problems

Find third proportional to 129,450 and 173,844
Half scale
Find third proportional to 517,800 and 695,376
Double scale
Find third proportional to 258,902 and 347,691
Similar ratio
Find third proportional to 388,350 and 521,532
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.