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Finding the Fourth Proportional to 376,929.85, 520,164.89 and 207,174.91

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Solution

The fourth proportional to 376,929.85, 520,164.89 and 207,174.91 is: 285,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,929.85 : 520,164.89 = 207,174.91 : x
  2. Step 2: Convert to fraction form
    376,929.85/520,164.89 = 207,174.91/x
  3. Step 3: Cross multiply
    376,929.85x = 520,164.89 × 207,174.91
  4. Step 4: Simplify right side
    376,929.85x = 107,765,114,270.91
  5. Step 5: Solve for x
    x = 107,765,114,270.91/376,929.85
  6. Step 6: Final answer
    x = 285,902.31

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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.