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Finding the Fourth Proportional to 303,924.60, 455,230.80 and 197,636.40

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Solution

The fourth proportional to 303,924.60, 455,230.80 and 197,636.40 is: 296,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,924.60 : 455,230.80 = 197,636.40 : x
  2. Step 2: Convert to fraction form
    303,924.60/455,230.80 = 197,636.40/x
  3. Step 3: Cross multiply
    303,924.60x = 455,230.80 × 197,636.40
  4. Step 4: Simplify right side
    303,924.60x = 89,970,176,481.12
  5. Step 5: Solve for x
    x = 89,970,176,481.12/303,924.60
  6. Step 6: Final answer
    x = 296,027.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.