Home / 219,777.44-303,352.65-129,162.60

Finding the Fourth Proportional to 219,777.44, 303,352.65 and 129,162.60

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Solution

The fourth proportional to 219,777.44, 303,352.65 and 129,162.60 is: 178,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,777.44 : 303,352.65 = 129,162.60 : x
  2. Step 2: Convert to fraction form
    219,777.44/303,352.65 = 129,162.60/x
  3. Step 3: Cross multiply
    219,777.44x = 303,352.65 × 129,162.60
  4. Step 4: Simplify right side
    219,777.44x = 39,181,816,990.89
  5. Step 5: Solve for x
    x = 39,181,816,990.89/219,777.44
  6. Step 6: Final answer
    x = 178,279.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.