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Finding the Fourth Proportional to 308,245.64, 462,183.91 and 128,113.85

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Solution

The fourth proportional to 308,245.64, 462,183.91 and 128,113.85 is: 192,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,245.64 : 462,183.91 = 128,113.85 : x
  2. Step 2: Convert to fraction form
    308,245.64/462,183.91 = 128,113.85/x
  3. Step 3: Cross multiply
    308,245.64x = 462,183.91 × 128,113.85
  4. Step 4: Simplify right side
    308,245.64x = 59,212,160,953.33
  5. Step 5: Solve for x
    x = 59,212,160,953.33/308,245.64
  6. Step 6: Final answer
    x = 192,094.08

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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.