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Finding the Fourth Proportional to 445,081.65, 667,327.28 and 245,497.65

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Solution

The fourth proportional to 445,081.65, 667,327.28 and 245,497.65 is: 368,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,081.65 : 667,327.28 = 245,497.65 : x
  2. Step 2: Convert to fraction form
    445,081.65/667,327.28 = 245,497.65/x
  3. Step 3: Cross multiply
    445,081.65x = 667,327.28 × 245,497.65
  4. Step 4: Simplify right side
    445,081.65x = 163,827,277,793.40
  5. Step 5: Solve for x
    x = 163,827,277,793.40/445,081.65
  6. Step 6: Final answer
    x = 368,083.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.