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Finding the Fourth Proportional to 286,252.72, 395,010.48 and 158,928.28

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Solution

The fourth proportional to 286,252.72, 395,010.48 and 158,928.28 is: 219,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,252.72 : 395,010.48 = 158,928.28 : x
  2. Step 2: Convert to fraction form
    286,252.72/395,010.48 = 158,928.28/x
  3. Step 3: Cross multiply
    286,252.72x = 395,010.48 × 158,928.28
  4. Step 4: Simplify right side
    286,252.72x = 62,778,336,168.37
  5. Step 5: Solve for x
    x = 62,778,336,168.37/286,252.72
  6. Step 6: Final answer
    x = 219,310.88

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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.