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Finding the Fourth Proportional to 298,638.45, 447,956.87 and 245,936.61

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Solution

The fourth proportional to 298,638.45, 447,956.87 and 245,936.61 is: 368,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,638.45 : 447,956.87 = 245,936.61 : x
  2. Step 2: Convert to fraction form
    298,638.45/447,956.87 = 245,936.61/x
  3. Step 3: Cross multiply
    298,638.45x = 447,956.87 × 245,936.61
  4. Step 4: Simplify right side
    298,638.45x = 110,168,992,804.33
  5. Step 5: Solve for x
    x = 110,168,992,804.33/298,638.45
  6. Step 6: Final answer
    x = 368,904.25

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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.