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Finding the Fourth Proportional to 281,506.08, 422,200.76 and 103,891.68

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Solution

The fourth proportional to 281,506.08, 422,200.76 and 103,891.68 is: 155,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,506.08 : 422,200.76 = 103,891.68 : x
  2. Step 2: Convert to fraction form
    281,506.08/422,200.76 = 103,891.68/x
  3. Step 3: Cross multiply
    281,506.08x = 422,200.76 × 103,891.68
  4. Step 4: Simplify right side
    281,506.08x = 43,863,146,253.68
  5. Step 5: Solve for x
    x = 43,863,146,253.68/281,506.08
  6. Step 6: Final answer
    x = 155,815.98

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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.