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Finding the Fourth Proportional to 377,379.98, 520,787.76 and 205,301.71

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Solution

The fourth proportional to 377,379.98, 520,787.76 and 205,301.71 is: 283,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,379.98 : 520,787.76 = 205,301.71 : x
  2. Step 2: Convert to fraction form
    377,379.98/520,787.76 = 205,301.71/x
  3. Step 3: Cross multiply
    377,379.98x = 520,787.76 × 205,301.71
  4. Step 4: Simplify right side
    377,379.98x = 106,918,616,373.10
  5. Step 5: Solve for x
    x = 106,918,616,373.10/377,379.98
  6. Step 6: Final answer
    x = 283,318.20

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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.