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Finding the Fourth Proportional to 376,728, 519,884.85 and 206,973.06

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Solution

The fourth proportional to 376,728, 519,884.85 and 206,973.06 is: 285,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,728 : 519,884.85 = 206,973.06 : x
  2. Step 2: Convert to fraction form
    376,728/519,884.85 = 206,973.06/x
  3. Step 3: Cross multiply
    376,728x = 519,884.85 × 206,973.06
  4. Step 4: Simplify right side
    376,728x = 107,602,158,252.14
  5. Step 5: Solve for x
    x = 107,602,158,252.14/376,728
  6. Step 6: Final answer
    x = 285,622.94

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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.