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Finding the Fourth Proportional to 377,183.91, 520,386.39 and 213,822.90

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Solution

The fourth proportional to 377,183.91, 520,386.39 and 213,822.90 is: 295,003.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,183.91 : 520,386.39 = 213,822.90 : x
  2. Step 2: Convert to fraction form
    377,183.91/520,386.39 = 213,822.90/x
  3. Step 3: Cross multiply
    377,183.91x = 520,386.39 × 213,822.90
  4. Step 4: Simplify right side
    377,183.91x = 111,270,527,030.33
  5. Step 5: Solve for x
    x = 111,270,527,030.33/377,183.91
  6. Step 6: Final answer
    x = 295,003.38

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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.