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Finding the Fourth Proportional to 300,090.72, 449,494.52 and 242,917.68

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Solution

The fourth proportional to 300,090.72, 449,494.52 and 242,917.68 is: 363,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,090.72 : 449,494.52 = 242,917.68 : x
  2. Step 2: Convert to fraction form
    300,090.72/449,494.52 = 242,917.68/x
  3. Step 3: Cross multiply
    300,090.72x = 449,494.52 × 242,917.68
  4. Step 4: Simplify right side
    300,090.72x = 109,190,166,442.13
  5. Step 5: Solve for x
    x = 109,190,166,442.13/300,090.72
  6. Step 6: Final answer
    x = 363,857.19

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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.