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Finding the Fourth Proportional to 358,983.39, 495,391.16 and 206,015.31

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Solution

The fourth proportional to 358,983.39, 495,391.16 and 206,015.31 is: 284,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,983.39 : 495,391.16 = 206,015.31 : x
  2. Step 2: Convert to fraction form
    358,983.39/495,391.16 = 206,015.31/x
  3. Step 3: Cross multiply
    358,983.39x = 495,391.16 × 206,015.31
  4. Step 4: Simplify right side
    358,983.39x = 102,058,162,368.58
  5. Step 5: Solve for x
    x = 102,058,162,368.58/358,983.39
  6. Step 6: Final answer
    x = 284,297.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.