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Finding the Fourth Proportional to 298,390.34, 447,765.18 and 108,867.35

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Solution

The fourth proportional to 298,390.34, 447,765.18 and 108,867.35 is: 163,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,390.34 : 447,765.18 = 108,867.35 : x
  2. Step 2: Convert to fraction form
    298,390.34/447,765.18 = 108,867.35/x
  3. Step 3: Cross multiply
    298,390.34x = 447,765.18 × 108,867.35
  4. Step 4: Simplify right side
    298,390.34x = 48,747,008,568.87
  5. Step 5: Solve for x
    x = 48,747,008,568.87/298,390.34
  6. Step 6: Final answer
    x = 163,366.58

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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.