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Finding the Fourth Proportional to 357,745.40, 536,618.10 and 161,137.40

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Solution

The fourth proportional to 357,745.40, 536,618.10 and 161,137.40 is: 241,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,745.40 : 536,618.10 = 161,137.40 : x
  2. Step 2: Convert to fraction form
    357,745.40/536,618.10 = 161,137.40/x
  3. Step 3: Cross multiply
    357,745.40x = 536,618.10 × 161,137.40
  4. Step 4: Simplify right side
    357,745.40x = 86,469,245,426.94
  5. Step 5: Solve for x
    x = 86,469,245,426.94/357,745.40
  6. Step 6: Final answer
    x = 241,706.10

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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.