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Finding the Fourth Proportional to 377,472.61, 520,896.48 and 205,391.25

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Solution

The fourth proportional to 377,472.61, 520,896.48 and 205,391.25 is: 283,431.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,472.61 : 520,896.48 = 205,391.25 : x
  2. Step 2: Convert to fraction form
    377,472.61/520,896.48 = 205,391.25/x
  3. Step 3: Cross multiply
    377,472.61x = 520,896.48 × 205,391.25
  4. Step 4: Simplify right side
    377,472.61x = 106,987,579,147.80
  5. Step 5: Solve for x
    x = 106,987,579,147.80/377,472.61
  6. Step 6: Final answer
    x = 283,431.37

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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.