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Finding the Fourth Proportional to 377,940.60, 566,133.30 and 259,745.40

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Solution

The fourth proportional to 377,940.60, 566,133.30 and 259,745.40 is: 389,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,940.60 : 566,133.30 = 259,745.40 : x
  2. Step 2: Convert to fraction form
    377,940.60/566,133.30 = 259,745.40/x
  3. Step 3: Cross multiply
    377,940.60x = 566,133.30 × 259,745.40
  4. Step 4: Simplify right side
    377,940.60x = 147,050,520,461.82
  5. Step 5: Solve for x
    x = 147,050,520,461.82/377,940.60
  6. Step 6: Final answer
    x = 389,083.68

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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.