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Finding the Fourth Proportional to 331,311.60, 496,578.60 and 141,771.60

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Solution

The fourth proportional to 331,311.60, 496,578.60 and 141,771.60 is: 212,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,311.60 : 496,578.60 = 141,771.60 : x
  2. Step 2: Convert to fraction form
    331,311.60/496,578.60 = 141,771.60/x
  3. Step 3: Cross multiply
    331,311.60x = 496,578.60 × 141,771.60
  4. Step 4: Simplify right side
    331,311.60x = 70,400,742,647.76
  5. Step 5: Solve for x
    x = 70,400,742,647.76/331,311.60
  6. Step 6: Final answer
    x = 212,491.03

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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.