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Finding the Fourth Proportional to 237,078.78, 355,243.63 and 192,487.67

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Solution

The fourth proportional to 237,078.78, 355,243.63 and 192,487.67 is: 288,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,078.78 : 355,243.63 = 192,487.67 : x
  2. Step 2: Convert to fraction form
    237,078.78/355,243.63 = 192,487.67/x
  3. Step 3: Cross multiply
    237,078.78x = 355,243.63 × 192,487.67
  4. Step 4: Simplify right side
    237,078.78x = 68,380,017,658.60
  5. Step 5: Solve for x
    x = 68,380,017,658.60/237,078.78
  6. Step 6: Final answer
    x = 288,427.41

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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.