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Finding the Fourth Proportional to 281,074, 422,038.56 and 245,515

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Solution

The fourth proportional to 281,074, 422,038.56 and 245,515 is: 368,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,074 : 422,038.56 = 245,515 : x
  2. Step 2: Convert to fraction form
    281,074/422,038.56 = 245,515/x
  3. Step 3: Cross multiply
    281,074x = 422,038.56 × 245,515
  4. Step 4: Simplify right side
    281,074x = 103,616,797,058.40
  5. Step 5: Solve for x
    x = 103,616,797,058.40/281,074
  6. Step 6: Final answer
    x = 368,645.97

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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.