Home / 305,260.06-421,231.04-169,293.60

Finding the Fourth Proportional to 305,260.06, 421,231.04 and 169,293.60

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Solution

The fourth proportional to 305,260.06, 421,231.04 and 169,293.60 is: 233,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,260.06 : 421,231.04 = 169,293.60 : x
  2. Step 2: Convert to fraction form
    305,260.06/421,231.04 = 169,293.60/x
  3. Step 3: Cross multiply
    305,260.06x = 421,231.04 × 169,293.60
  4. Step 4: Simplify right side
    305,260.06x = 71,311,719,193.34
  5. Step 5: Solve for x
    x = 71,311,719,193.34/305,260.06
  6. Step 6: Final answer
    x = 233,609.73

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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.