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Finding the Fourth Proportional to 251,796.60, 377,694.90 and 218,991.60

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Solution

The fourth proportional to 251,796.60, 377,694.90 and 218,991.60 is: 328,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,796.60 : 377,694.90 = 218,991.60 : x
  2. Step 2: Convert to fraction form
    251,796.60/377,694.90 = 218,991.60/x
  3. Step 3: Cross multiply
    251,796.60x = 377,694.90 × 218,991.60
  4. Step 4: Simplify right side
    251,796.60x = 82,712,010,462.84
  5. Step 5: Solve for x
    x = 82,712,010,462.84/251,796.60
  6. Step 6: Final answer
    x = 328,487.40

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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.