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Finding the Fourth Proportional to 281,377.80, 422,066.70 and 163,352.70

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Solution

The fourth proportional to 281,377.80, 422,066.70 and 163,352.70 is: 245,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,377.80 : 422,066.70 = 163,352.70 : x
  2. Step 2: Convert to fraction form
    281,377.80/422,066.70 = 163,352.70/x
  3. Step 3: Cross multiply
    281,377.80x = 422,066.70 × 163,352.70
  4. Step 4: Simplify right side
    281,377.80x = 68,945,735,025.09
  5. Step 5: Solve for x
    x = 68,945,735,025.09/281,377.80
  6. Step 6: Final answer
    x = 245,029.05

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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.