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Finding the Fourth Proportional to 376,823.73, 520,016.63 and 207,068.79

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Solution

The fourth proportional to 376,823.73, 520,016.63 and 207,068.79 is: 285,754.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,823.73 : 520,016.63 = 207,068.79 : x
  2. Step 2: Convert to fraction form
    376,823.73/520,016.63 = 207,068.79/x
  3. Step 3: Cross multiply
    376,823.73x = 520,016.63 × 207,068.79
  4. Step 4: Simplify right side
    376,823.73x = 107,679,214,353.98
  5. Step 5: Solve for x
    x = 107,679,214,353.98/376,823.73
  6. Step 6: Final answer
    x = 285,754.87

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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.