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Finding the Fourth Proportional to 358,879.64, 495,249.95 and 205,941.89

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Solution

The fourth proportional to 358,879.64, 495,249.95 and 205,941.89 is: 284,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,879.64 : 495,249.95 = 205,941.89 : x
  2. Step 2: Convert to fraction form
    358,879.64/495,249.95 = 205,941.89/x
  3. Step 3: Cross multiply
    358,879.64x = 495,249.95 × 205,941.89
  4. Step 4: Simplify right side
    358,879.64x = 101,992,707,219.45
  5. Step 5: Solve for x
    x = 101,992,707,219.45/358,879.64
  6. Step 6: Final answer
    x = 284,197.53

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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.