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Finding the Fourth Proportional to 395,619, 593,455.86 and 158,961.48

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Solution

The fourth proportional to 395,619, 593,455.86 and 158,961.48 is: 238,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,619 : 593,455.86 = 158,961.48 : x
  2. Step 2: Convert to fraction form
    395,619/593,455.86 = 158,961.48/x
  3. Step 3: Cross multiply
    395,619x = 593,455.86 × 158,961.48
  4. Step 4: Simplify right side
    395,619x = 94,336,621,820.27
  5. Step 5: Solve for x
    x = 94,336,621,820.27/395,619
  6. Step 6: Final answer
    x = 238,453.21

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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.