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Finding the Fourth Proportional to 377,443.79, 520,872.43 and 205,361.83

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Solution

The fourth proportional to 377,443.79, 520,872.43 and 205,361.83 is: 283,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,443.79 : 520,872.43 = 205,361.83 : x
  2. Step 2: Convert to fraction form
    377,443.79/520,872.43 = 205,361.83/x
  3. Step 3: Cross multiply
    377,443.79x = 520,872.43 × 205,361.83
  4. Step 4: Simplify right side
    377,443.79x = 106,967,313,605.76
  5. Step 5: Solve for x
    x = 106,967,313,605.76/377,443.79
  6. Step 6: Final answer
    x = 283,399.32

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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.