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Finding the Fourth Proportional to 268,481.36, 370,505.65 and 147,630.44

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Solution

The fourth proportional to 268,481.36, 370,505.65 and 147,630.44 is: 203,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,481.36 : 370,505.65 = 147,630.44 : x
  2. Step 2: Convert to fraction form
    268,481.36/370,505.65 = 147,630.44/x
  3. Step 3: Cross multiply
    268,481.36x = 370,505.65 × 147,630.44
  4. Step 4: Simplify right side
    268,481.36x = 54,697,909,910.38
  5. Step 5: Solve for x
    x = 54,697,909,910.38/268,481.36
  6. Step 6: Final answer
    x = 203,730.76

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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.