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Finding the Fourth Proportional to 329,091.33, 493,429.64 and 279,188.85

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Solution

The fourth proportional to 329,091.33, 493,429.64 and 279,188.85 is: 418,607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,091.33 : 493,429.64 = 279,188.85 : x
  2. Step 2: Convert to fraction form
    329,091.33/493,429.64 = 279,188.85/x
  3. Step 3: Cross multiply
    329,091.33x = 493,429.64 × 279,188.85
  4. Step 4: Simplify right side
    329,091.33x = 137,760,052,351.57
  5. Step 5: Solve for x
    x = 137,760,052,351.57/329,091.33
  6. Step 6: Final answer
    x = 418,607.36

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1.5x scale

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.