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Finding the Fourth Proportional to 377,552.05, 520,930.68 and 222,509.72

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Solution

The fourth proportional to 377,552.05, 520,930.68 and 222,509.72 is: 307,009.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,552.05 : 520,930.68 = 222,509.72 : x
  2. Step 2: Convert to fraction form
    377,552.05/520,930.68 = 222,509.72/x
  3. Step 3: Cross multiply
    377,552.05x = 520,930.68 × 222,509.72
  4. Step 4: Simplify right side
    377,552.05x = 115,912,137,141.56
  5. Step 5: Solve for x
    x = 115,912,137,141.56/377,552.05
  6. Step 6: Final answer
    x = 307,009.69

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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.