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Finding the Fourth Proportional to 319,804.38, 479,662.80 and 95,199.48

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Solution

The fourth proportional to 319,804.38, 479,662.80 and 95,199.48 is: 142,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,804.38 : 479,662.80 = 95,199.48 : x
  2. Step 2: Convert to fraction form
    319,804.38/479,662.80 = 95,199.48/x
  3. Step 3: Cross multiply
    319,804.38x = 479,662.80 × 95,199.48
  4. Step 4: Simplify right side
    319,804.38x = 45,663,649,135.34
  5. Step 5: Solve for x
    x = 45,663,649,135.34/319,804.38
  6. Step 6: Final answer
    x = 142,786.19

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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.