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Finding the Fourth Proportional to 358,906.62, 495,262.36 and 208,013.34

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Solution

The fourth proportional to 358,906.62, 495,262.36 and 208,013.34 is: 287,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,906.62 : 495,262.36 = 208,013.34 : x
  2. Step 2: Convert to fraction form
    358,906.62/495,262.36 = 208,013.34/x
  3. Step 3: Cross multiply
    358,906.62x = 495,262.36 × 208,013.34
  4. Step 4: Simplify right side
    358,906.62x = 103,021,177,679.88
  5. Step 5: Solve for x
    x = 103,021,177,679.88/358,906.62
  6. Step 6: Final answer
    x = 287,041.73

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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.