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Finding the Fourth Proportional to 377,072.58, 520,357.97 and 213,759.90

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Solution

The fourth proportional to 377,072.58, 520,357.97 and 213,759.90 is: 294,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,072.58 : 520,357.97 = 213,759.90 : x
  2. Step 2: Convert to fraction form
    377,072.58/520,357.97 = 213,759.90/x
  3. Step 3: Cross multiply
    377,072.58x = 520,357.97 × 213,759.90
  4. Step 4: Simplify right side
    377,072.58x = 111,231,667,631.40
  5. Step 5: Solve for x
    x = 111,231,667,631.40/377,072.58
  6. Step 6: Final answer
    x = 294,987.42

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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.