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Finding the Fourth Proportional to 323,896.32, 485,915.56 and 99,273.65

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Solution

The fourth proportional to 323,896.32, 485,915.56 and 99,273.65 is: 148,932.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,896.32 : 485,915.56 = 99,273.65 : x
  2. Step 2: Convert to fraction form
    323,896.32/485,915.56 = 99,273.65/x
  3. Step 3: Cross multiply
    323,896.32x = 485,915.56 × 99,273.65
  4. Step 4: Simplify right side
    323,896.32x = 48,238,611,288.51
  5. Step 5: Solve for x
    x = 48,238,611,288.51/323,896.32
  6. Step 6: Final answer
    x = 148,932.26

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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.