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Finding the Fourth Proportional to 272,472.48, 408,704 and 122,606.72

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Solution

The fourth proportional to 272,472.48, 408,704 and 122,606.72 is: 183,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,472.48 : 408,704 = 122,606.72 : x
  2. Step 2: Convert to fraction form
    272,472.48/408,704 = 122,606.72/x
  3. Step 3: Cross multiply
    272,472.48x = 408,704 × 122,606.72
  4. Step 4: Simplify right side
    272,472.48x = 50,109,856,890.88
  5. Step 5: Solve for x
    x = 50,109,856,890.88/272,472.48
  6. Step 6: Final answer
    x = 183,907.96

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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.