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Finding the Fourth Proportional to 298,455.69, 447,639.39 and 108,871.68

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Solution

The fourth proportional to 298,455.69, 447,639.39 and 108,871.68 is: 163,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,455.69 : 447,639.39 = 108,871.68 : x
  2. Step 2: Convert to fraction form
    298,455.69/447,639.39 = 108,871.68/x
  3. Step 3: Cross multiply
    298,455.69x = 447,639.39 × 108,871.68
  4. Step 4: Simplify right side
    298,455.69x = 48,735,252,423.48
  5. Step 5: Solve for x
    x = 48,735,252,423.48/298,455.69
  6. Step 6: Final answer
    x = 163,291.42

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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.