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Finding the Fourth Proportional to 332,379.72, 498,600.94 and 257,583.64

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Solution

The fourth proportional to 332,379.72, 498,600.94 and 257,583.64 is: 386,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,379.72 : 498,600.94 = 257,583.64 : x
  2. Step 2: Convert to fraction form
    332,379.72/498,600.94 = 257,583.64/x
  3. Step 3: Cross multiply
    332,379.72x = 498,600.94 × 257,583.64
  4. Step 4: Simplify right side
    332,379.72x = 128,431,443,744.70
  5. Step 5: Solve for x
    x = 128,431,443,744.70/332,379.72
  6. Step 6: Final answer
    x = 386,399.76

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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.