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Finding the Fourth Proportional to 377,650.69, 521,168.87 and 205,579.82

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Solution

The fourth proportional to 377,650.69, 521,168.87 and 205,579.82 is: 283,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,650.69 : 521,168.87 = 205,579.82 : x
  2. Step 2: Convert to fraction form
    377,650.69/521,168.87 = 205,579.82/x
  3. Step 3: Cross multiply
    377,650.69x = 521,168.87 × 205,579.82
  4. Step 4: Simplify right side
    377,650.69x = 107,141,804,301.08
  5. Step 5: Solve for x
    x = 107,141,804,301.08/377,650.69
  6. Step 6: Final answer
    x = 283,706.10

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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.