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Finding the Fourth Proportional to 348,978.35, 481,467.48 and 228,190.34

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Solution

The fourth proportional to 348,978.35, 481,467.48 and 228,190.34 is: 314,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,978.35 : 481,467.48 = 228,190.34 : x
  2. Step 2: Convert to fraction form
    348,978.35/481,467.48 = 228,190.34/x
  3. Step 3: Cross multiply
    348,978.35x = 481,467.48 × 228,190.34
  4. Step 4: Simplify right side
    348,978.35x = 109,866,227,960.14
  5. Step 5: Solve for x
    x = 109,866,227,960.14/348,978.35
  6. Step 6: Final answer
    x = 314,822.48

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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.