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Finding the Fourth Proportional to 368,051.80, 552,401.70 and 218,104.60

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Solution

The fourth proportional to 368,051.80, 552,401.70 and 218,104.60 is: 327,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,051.80 : 552,401.70 = 218,104.60 : x
  2. Step 2: Convert to fraction form
    368,051.80/552,401.70 = 218,104.60/x
  3. Step 3: Cross multiply
    368,051.80x = 552,401.70 × 218,104.60
  4. Step 4: Simplify right side
    368,051.80x = 120,481,351,817.82
  5. Step 5: Solve for x
    x = 120,481,351,817.82/368,051.80
  6. Step 6: Final answer
    x = 327,348.90

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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.