Home / 142,420.50-303,903

Finding the Third Proportional to 142,420.50 and 303,903

Calculator

Solution

The third proportional to 142,420.50 and 303,903 is: 648,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,420.50 : 303,903 = 303,903 : x
  2. Step 2: Convert to fraction form
    142,420.50/303,903 = 303,903/x
  3. Step 3: Cross multiply
    142,420.50x = 303,903 × 303,903
  4. Step 4: Simplify right side
    142,420.50x = 92,357,033,409
  5. Step 5: Solve for x
    x = 92,357,033,409/142,420.50
  6. Step 6: Final answer
    x = 648,481.32

Related Problems

Find third proportional to 71,210.25 and 151,951.50
Half scale
Find third proportional to 284,841 and 607,806
Double scale
Find third proportional to 142,423 and 303,907
Similar ratio
Find third proportional to 213,630.75 and 455,854.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.