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Finding the Fourth Proportional to 281,955.63, 422,793.47 and 89,805

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Solution

The fourth proportional to 281,955.63, 422,793.47 and 89,805 is: 134,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,955.63 : 422,793.47 = 89,805 : x
  2. Step 2: Convert to fraction form
    281,955.63/422,793.47 = 89,805/x
  3. Step 3: Cross multiply
    281,955.63x = 422,793.47 × 89,805
  4. Step 4: Simplify right side
    281,955.63x = 37,968,967,124.33
  5. Step 5: Solve for x
    x = 37,968,967,124.33/281,955.63
  6. Step 6: Final answer
    x = 134,662.92

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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.