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Finding the Fourth Proportional to 376,007.65, 518,956.90 and 223,130.14

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Solution

The fourth proportional to 376,007.65, 518,956.90 and 223,130.14 is: 307,958.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,007.65 : 518,956.90 = 223,130.14 : x
  2. Step 2: Convert to fraction form
    376,007.65/518,956.90 = 223,130.14/x
  3. Step 3: Cross multiply
    376,007.65x = 518,956.90 × 223,130.14
  4. Step 4: Simplify right side
    376,007.65x = 115,794,923,895.75
  5. Step 5: Solve for x
    x = 115,794,923,895.75/376,007.65
  6. Step 6: Final answer
    x = 307,958.96

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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.