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Finding the Fourth Proportional to 358,885.57, 495,273.30 and 205,951.74

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Solution

The fourth proportional to 358,885.57, 495,273.30 and 205,951.74 is: 284,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,885.57 : 495,273.30 = 205,951.74 : x
  2. Step 2: Convert to fraction form
    358,885.57/495,273.30 = 205,951.74/x
  3. Step 3: Cross multiply
    358,885.57x = 495,273.30 × 205,951.74
  4. Step 4: Simplify right side
    358,885.57x = 102,002,396,825.59
  5. Step 5: Solve for x
    x = 102,002,396,825.59/358,885.57
  6. Step 6: Final answer
    x = 284,219.83

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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.