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Finding the Fourth Proportional to 368,883.90, 509,052.87 and 225,633.42

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Solution

The fourth proportional to 368,883.90, 509,052.87 and 225,633.42 is: 311,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,883.90 : 509,052.87 = 225,633.42 : x
  2. Step 2: Convert to fraction form
    368,883.90/509,052.87 = 225,633.42/x
  3. Step 3: Cross multiply
    368,883.90x = 509,052.87 × 225,633.42
  4. Step 4: Simplify right side
    368,883.90x = 114,859,340,018.92
  5. Step 5: Solve for x
    x = 114,859,340,018.92/368,883.90
  6. Step 6: Final answer
    x = 311,369.89

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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.