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Finding the Fourth Proportional to 203,398.83, 304,886.43 and 68,362.65

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Solution

The fourth proportional to 203,398.83, 304,886.43 and 68,362.65 is: 102,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,398.83 : 304,886.43 = 68,362.65 : x
  2. Step 2: Convert to fraction form
    203,398.83/304,886.43 = 68,362.65/x
  3. Step 3: Cross multiply
    203,398.83x = 304,886.43 × 68,362.65
  4. Step 4: Simplify right side
    203,398.83x = 20,842,844,303.84
  5. Step 5: Solve for x
    x = 20,842,844,303.84/203,398.83
  6. Step 6: Final answer
    x = 102,472.78

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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.