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Finding the Fourth Proportional to 204,379.40, 308,488.88 and 204,379.40

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Solution

The fourth proportional to 204,379.40, 308,488.88 and 204,379.40 is: 308,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,379.40 : 308,488.88 = 204,379.40 : x
  2. Step 2: Convert to fraction form
    204,379.40/308,488.88 = 204,379.40/x
  3. Step 3: Cross multiply
    204,379.40x = 308,488.88 × 204,379.40
  4. Step 4: Simplify right side
    204,379.40x = 63,048,772,201.07
  5. Step 5: Solve for x
    x = 63,048,772,201.07/204,379.40
  6. Step 6: Final answer
    x = 308,488.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.