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Finding the Fourth Proportional to 482,980.65, 666,479.86 and 268,103.73

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Solution

The fourth proportional to 482,980.65, 666,479.86 and 268,103.73 is: 369,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,980.65 : 666,479.86 = 268,103.73 : x
  2. Step 2: Convert to fraction form
    482,980.65/666,479.86 = 268,103.73/x
  3. Step 3: Cross multiply
    482,980.65x = 666,479.86 × 268,103.73
  4. Step 4: Simplify right side
    482,980.65x = 178,685,736,435.88
  5. Step 5: Solve for x
    x = 178,685,736,435.88/482,980.65
  6. Step 6: Final answer
    x = 369,964.59

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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.