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Finding the Fourth Proportional to 275,369.93, 379,302.45 and 194,658.65

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Solution

The fourth proportional to 275,369.93, 379,302.45 and 194,658.65 is: 268,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,369.93 : 379,302.45 = 194,658.65 : x
  2. Step 2: Convert to fraction form
    275,369.93/379,302.45 = 194,658.65/x
  3. Step 3: Cross multiply
    275,369.93x = 379,302.45 × 194,658.65
  4. Step 4: Simplify right side
    275,369.93x = 73,834,502,858.69
  5. Step 5: Solve for x
    x = 73,834,502,858.69/275,369.93
  6. Step 6: Final answer
    x = 268,128.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.