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Finding the Fourth Proportional to 251,938.01, 377,960.31 and 83,448.79

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Solution

The fourth proportional to 251,938.01, 377,960.31 and 83,448.79 is: 125,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,938.01 : 377,960.31 = 83,448.79 : x
  2. Step 2: Convert to fraction form
    251,938.01/377,960.31 = 83,448.79/x
  3. Step 3: Cross multiply
    251,938.01x = 377,960.31 × 83,448.79
  4. Step 4: Simplify right side
    251,938.01x = 31,540,329,592.62
  5. Step 5: Solve for x
    x = 31,540,329,592.62/251,938.01
  6. Step 6: Final answer
    x = 125,190.83

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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.