Home / 140,220-306,139.50

Finding the Third Proportional to 140,220 and 306,139.50

Calculator

Solution

The third proportional to 140,220 and 306,139.50 is: 668,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,220 : 306,139.50 = 306,139.50 : x
  2. Step 2: Convert to fraction form
    140,220/306,139.50 = 306,139.50/x
  3. Step 3: Cross multiply
    140,220x = 306,139.50 × 306,139.50
  4. Step 4: Simplify right side
    140,220x = 93,721,393,460.25
  5. Step 5: Solve for x
    x = 93,721,393,460.25/140,220
  6. Step 6: Final answer
    x = 668,388.20

Related Problems

Find third proportional to 70,110 and 153,069.75
Half scale
Find third proportional to 280,440 and 612,279
Double scale
Find third proportional to 140,222 and 306,144
Similar ratio
Find third proportional to 210,330 and 459,209.25
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.