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Finding the Fourth Proportional to 358,870.29, 495,252.18 and 205,936.49

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Solution

The fourth proportional to 358,870.29, 495,252.18 and 205,936.49 is: 284,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,870.29 : 495,252.18 = 205,936.49 : x
  2. Step 2: Convert to fraction form
    358,870.29/495,252.18 = 205,936.49/x
  3. Step 3: Cross multiply
    358,870.29x = 495,252.18 × 205,936.49
  4. Step 4: Simplify right side
    358,870.29x = 101,990,493,137.79
  5. Step 5: Solve for x
    x = 101,990,493,137.79/358,870.29
  6. Step 6: Final answer
    x = 284,198.76

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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.