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Finding the Fourth Proportional to 368,378, 552,445.50 and 119,001.68

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Solution

The fourth proportional to 368,378, 552,445.50 and 119,001.68 is: 178,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,378 : 552,445.50 = 119,001.68 : x
  2. Step 2: Convert to fraction form
    368,378/552,445.50 = 119,001.68/x
  3. Step 3: Cross multiply
    368,378x = 552,445.50 × 119,001.68
  4. Step 4: Simplify right side
    368,378x = 65,741,942,608.44
  5. Step 5: Solve for x
    x = 65,741,942,608.44/368,378
  6. Step 6: Final answer
    x = 178,463.27

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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.