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Finding the Fourth Proportional to 358,836, 495,193.68 and 199,860

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Solution

The fourth proportional to 358,836, 495,193.68 and 199,860 is: 275,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,836 : 495,193.68 = 199,860 : x
  2. Step 2: Convert to fraction form
    358,836/495,193.68 = 199,860/x
  3. Step 3: Cross multiply
    358,836x = 495,193.68 × 199,860
  4. Step 4: Simplify right side
    358,836x = 98,969,408,884.80
  5. Step 5: Solve for x
    x = 98,969,408,884.80/358,836
  6. Step 6: Final answer
    x = 275,806.80

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