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Finding the Fourth Proportional to 376,857.29, 520,067.16 and 207,091.41

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Solution

The fourth proportional to 376,857.29, 520,067.16 and 207,091.41 is: 285,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,857.29 : 520,067.16 = 207,091.41 : x
  2. Step 2: Convert to fraction form
    376,857.29/520,067.16 = 207,091.41/x
  3. Step 3: Cross multiply
    376,857.29x = 520,067.16 × 207,091.41
  4. Step 4: Simplify right side
    376,857.29x = 107,701,441,459.10
  5. Step 5: Solve for x
    x = 107,701,441,459.10/376,857.29
  6. Step 6: Final answer
    x = 285,788.40

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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.