Home / 121,068-258,750

Finding the Third Proportional to 121,068 and 258,750

Calculator

Solution

The third proportional to 121,068 and 258,750 is: 553,007.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,068 : 258,750 = 258,750 : x
  2. Step 2: Convert to fraction form
    121,068/258,750 = 258,750/x
  3. Step 3: Cross multiply
    121,068x = 258,750 × 258,750
  4. Step 4: Simplify right side
    121,068x = 66,951,562,500
  5. Step 5: Solve for x
    x = 66,951,562,500/121,068
  6. Step 6: Final answer
    x = 553,007.92

Related Problems

Find third proportional to 60,534 and 129,375
Half scale
Find third proportional to 242,136 and 517,500
Double scale
Find third proportional to 121,070 and 258,754
Similar ratio
Find third proportional to 181,602 and 388,125
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.