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Finding the Fourth Proportional to 203,343.75, 304,804.08 and 68,307.64

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Solution

The fourth proportional to 203,343.75, 304,804.08 and 68,307.64 is: 102,390.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,343.75 : 304,804.08 = 68,307.64 : x
  2. Step 2: Convert to fraction form
    203,343.75/304,804.08 = 68,307.64/x
  3. Step 3: Cross multiply
    203,343.75x = 304,804.08 × 68,307.64
  4. Step 4: Simplify right side
    203,343.75x = 20,820,446,605.16
  5. Step 5: Solve for x
    x = 20,820,446,605.16/203,343.75
  6. Step 6: Final answer
    x = 102,390.39

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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.