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Finding the Fourth Proportional to 203,338.88, 304,904.32 and 84,977.92

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Solution

The fourth proportional to 203,338.88, 304,904.32 and 84,977.92 is: 127,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,338.88 : 304,904.32 = 84,977.92 : x
  2. Step 2: Convert to fraction form
    203,338.88/304,904.32 = 84,977.92/x
  3. Step 3: Cross multiply
    203,338.88x = 304,904.32 × 84,977.92
  4. Step 4: Simplify right side
    203,338.88x = 25,910,134,912.61
  5. Step 5: Solve for x
    x = 25,910,134,912.61/203,338.88
  6. Step 6: Final answer
    x = 127,423.42

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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.