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Finding the Fourth Proportional to 289,905.70, 434,167.35 and 289,905.70

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Solution

The fourth proportional to 289,905.70, 434,167.35 and 289,905.70 is: 434,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,905.70 : 434,167.35 = 289,905.70 : x
  2. Step 2: Convert to fraction form
    289,905.70/434,167.35 = 289,905.70/x
  3. Step 3: Cross multiply
    289,905.70x = 434,167.35 × 289,905.70
  4. Step 4: Simplify right side
    289,905.70x = 125,867,589,518.90
  5. Step 5: Solve for x
    x = 125,867,589,518.90/289,905.70
  6. Step 6: Final answer
    x = 434,167.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.