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Finding the Fourth Proportional to 256,269.06, 384,404.99 and 168,081.03

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Solution

The fourth proportional to 256,269.06, 384,404.99 and 168,081.03 is: 252,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,269.06 : 384,404.99 = 168,081.03 : x
  2. Step 2: Convert to fraction form
    256,269.06/384,404.99 = 168,081.03/x
  3. Step 3: Cross multiply
    256,269.06x = 384,404.99 × 168,081.03
  4. Step 4: Simplify right side
    256,269.06x = 64,611,185,815.93
  5. Step 5: Solve for x
    x = 64,611,185,815.93/256,269.06
  6. Step 6: Final answer
    x = 252,122.46

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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.