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Finding the Fourth Proportional to 308,690.37, 462,719.84 and 208,861.11

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Solution

The fourth proportional to 308,690.37, 462,719.84 and 208,861.11 is: 313,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,690.37 : 462,719.84 = 208,861.11 : x
  2. Step 2: Convert to fraction form
    308,690.37/462,719.84 = 208,861.11/x
  3. Step 3: Cross multiply
    308,690.37x = 462,719.84 × 208,861.11
  4. Step 4: Simplify right side
    308,690.37x = 96,644,178,357.12
  5. Step 5: Solve for x
    x = 96,644,178,357.12/308,690.37
  6. Step 6: Final answer
    x = 313,078.05

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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.