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Finding the Fourth Proportional to 377,379.78, 520,787.46 and 205,301.50

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Solution

The fourth proportional to 377,379.78, 520,787.46 and 205,301.50 is: 283,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,379.78 : 520,787.46 = 205,301.50 : x
  2. Step 2: Convert to fraction form
    377,379.78/520,787.46 = 205,301.50/x
  3. Step 3: Cross multiply
    377,379.78x = 520,787.46 × 205,301.50
  4. Step 4: Simplify right side
    377,379.78x = 106,918,446,719.19
  5. Step 5: Solve for x
    x = 106,918,446,719.19/377,379.78
  6. Step 6: Final answer
    x = 283,317.90

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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.