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Finding the Fourth Proportional to 289,878, 434,811.87 and 119,062.73

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Solution

The fourth proportional to 289,878, 434,811.87 and 119,062.73 is: 178,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,878 : 434,811.87 = 119,062.73 : x
  2. Step 2: Convert to fraction form
    289,878/434,811.87 = 119,062.73/x
  3. Step 3: Cross multiply
    289,878x = 434,811.87 × 119,062.73
  4. Step 4: Simplify right side
    289,878x = 51,769,886,104.55
  5. Step 5: Solve for x
    x = 51,769,886,104.55/289,878
  6. Step 6: Final answer
    x = 178,591.98

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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.