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Finding the Fourth Proportional to 281,794.60, 388,894.64 and 154,470.52

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Solution

The fourth proportional to 281,794.60, 388,894.64 and 154,470.52 is: 213,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,794.60 : 388,894.64 = 154,470.52 : x
  2. Step 2: Convert to fraction form
    281,794.60/388,894.64 = 154,470.52/x
  3. Step 3: Cross multiply
    281,794.60x = 388,894.64 × 154,470.52
  4. Step 4: Simplify right side
    281,794.60x = 60,072,757,266.01
  5. Step 5: Solve for x
    x = 60,072,757,266.01/281,794.60
  6. Step 6: Final answer
    x = 213,179.24

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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.