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Finding the Fourth Proportional to 273,078.69, 376,982.32 and 211,689.26

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Solution

The fourth proportional to 273,078.69, 376,982.32 and 211,689.26 is: 292,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,078.69 : 376,982.32 = 211,689.26 : x
  2. Step 2: Convert to fraction form
    273,078.69/376,982.32 = 211,689.26/x
  3. Step 3: Cross multiply
    273,078.69x = 376,982.32 × 211,689.26
  4. Step 4: Simplify right side
    273,078.69x = 79,803,108,767.12
  5. Step 5: Solve for x
    x = 79,803,108,767.12/273,078.69
  6. Step 6: Final answer
    x = 292,234.85

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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.