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Finding the Fourth Proportional to 368,383.78, 552,573.82 and 318,311.52

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Solution

The fourth proportional to 368,383.78, 552,573.82 and 318,311.52 is: 477,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,383.78 : 552,573.82 = 318,311.52 : x
  2. Step 2: Convert to fraction form
    368,383.78/552,573.82 = 318,311.52/x
  3. Step 3: Cross multiply
    368,383.78x = 552,573.82 × 318,311.52
  4. Step 4: Simplify right side
    368,383.78x = 175,890,612,556.41
  5. Step 5: Solve for x
    x = 175,890,612,556.41/368,383.78
  6. Step 6: Final answer
    x = 477,465.68

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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.