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Finding the Fourth Proportional to 242,171.85, 363,289.53 and 80,012.04

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Solution

The fourth proportional to 242,171.85, 363,289.53 and 80,012.04 is: 120,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,171.85 : 363,289.53 = 80,012.04 : x
  2. Step 2: Convert to fraction form
    242,171.85/363,289.53 = 80,012.04/x
  3. Step 3: Cross multiply
    242,171.85x = 363,289.53 × 80,012.04
  4. Step 4: Simplify right side
    242,171.85x = 29,067,536,405.94
  5. Step 5: Solve for x
    x = 29,067,536,405.94/242,171.85
  6. Step 6: Final answer
    x = 120,028.55

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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.