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Finding the Fourth Proportional to 300,802.32, 451,231.34 and 98,399.56

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Solution

The fourth proportional to 300,802.32, 451,231.34 and 98,399.56 is: 147,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,802.32 : 451,231.34 = 98,399.56 : x
  2. Step 2: Convert to fraction form
    300,802.32/451,231.34 = 98,399.56/x
  3. Step 3: Cross multiply
    300,802.32x = 451,231.34 × 98,399.56
  4. Step 4: Simplify right side
    300,802.32x = 44,400,965,314.21
  5. Step 5: Solve for x
    x = 44,400,965,314.21/300,802.32
  6. Step 6: Final answer
    x = 147,608.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.