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Finding the Fourth Proportional to 281,572.09, 422,020.32 and 196,870.39

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Solution

The fourth proportional to 281,572.09, 422,020.32 and 196,870.39 is: 295,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,572.09 : 422,020.32 = 196,870.39 : x
  2. Step 2: Convert to fraction form
    281,572.09/422,020.32 = 196,870.39/x
  3. Step 3: Cross multiply
    281,572.09x = 422,020.32 × 196,870.39
  4. Step 4: Simplify right side
    281,572.09x = 83,083,304,986.32
  5. Step 5: Solve for x
    x = 83,083,304,986.32/281,572.09
  6. Step 6: Final answer
    x = 295,069.39

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1.5x scale

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.