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Finding the Fourth Proportional to 298,989.23, 448,694.00 and 270,403.51

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Solution

The fourth proportional to 298,989.23, 448,694.00 and 270,403.51 is: 405,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,989.23 : 448,694.00 = 270,403.51 : x
  2. Step 2: Convert to fraction form
    298,989.23/448,694.00 = 270,403.51/x
  3. Step 3: Cross multiply
    298,989.23x = 448,694.00 × 270,403.51
  4. Step 4: Simplify right side
    298,989.23x = 121,328,432,738.80
  5. Step 5: Solve for x
    x = 121,328,432,738.80/298,989.23
  6. Step 6: Final answer
    x = 405,795.32

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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.