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Finding the Fourth Proportional to 298,958.41, 447,939.33 and 210,052.72

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Solution

The fourth proportional to 298,958.41, 447,939.33 and 210,052.72 is: 314,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,958.41 : 447,939.33 = 210,052.72 : x
  2. Step 2: Convert to fraction form
    298,958.41/447,939.33 = 210,052.72/x
  3. Step 3: Cross multiply
    298,958.41x = 447,939.33 × 210,052.72
  4. Step 4: Simplify right side
    298,958.41x = 94,090,874,661.48
  5. Step 5: Solve for x
    x = 94,090,874,661.48/298,958.41
  6. Step 6: Final answer
    x = 314,728.98

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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.