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Finding the Fourth Proportional to 298,630.66, 447,677.06 and 108,958.64

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Solution

The fourth proportional to 298,630.66, 447,677.06 and 108,958.64 is: 163,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,630.66 : 447,677.06 = 108,958.64 : x
  2. Step 2: Convert to fraction form
    298,630.66/447,677.06 = 108,958.64/x
  3. Step 3: Cross multiply
    298,630.66x = 447,677.06 × 108,958.64
  4. Step 4: Simplify right side
    298,630.66x = 48,778,283,616.80
  5. Step 5: Solve for x
    x = 48,778,283,616.80/298,630.66
  6. Step 6: Final answer
    x = 163,339.84

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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.