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Finding the Fourth Proportional to 298,246.29, 447,369.44 and 108,720.87

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Solution

The fourth proportional to 298,246.29, 447,369.44 and 108,720.87 is: 163,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,246.29 : 447,369.44 = 108,720.87 : x
  2. Step 2: Convert to fraction form
    298,246.29/447,369.44 = 108,720.87/x
  3. Step 3: Cross multiply
    298,246.29x = 447,369.44 × 108,720.87
  4. Step 4: Simplify right side
    298,246.29x = 48,638,394,184.61
  5. Step 5: Solve for x
    x = 48,638,394,184.61/298,246.29
  6. Step 6: Final answer
    x = 163,081.31

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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.