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Finding the Fourth Proportional to 203,021.30, 304,551.15 and 55,277.30

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Solution

The fourth proportional to 203,021.30, 304,551.15 and 55,277.30 is: 82,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,021.30 : 304,551.15 = 55,277.30 : x
  2. Step 2: Convert to fraction form
    203,021.30/304,551.15 = 55,277.30/x
  3. Step 3: Cross multiply
    203,021.30x = 304,551.15 × 55,277.30
  4. Step 4: Simplify right side
    203,021.30x = 16,834,765,283.90
  5. Step 5: Solve for x
    x = 16,834,765,283.90/203,021.30
  6. Step 6: Final answer
    x = 82,921.18

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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.