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Finding the Fourth Proportional to 405,028.62, 559,098.84 and 267,185.64

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Solution

The fourth proportional to 405,028.62, 559,098.84 and 267,185.64 is: 368,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,028.62 : 559,098.84 = 267,185.64 : x
  2. Step 2: Convert to fraction form
    405,028.62/559,098.84 = 267,185.64/x
  3. Step 3: Cross multiply
    405,028.62x = 559,098.84 × 267,185.64
  4. Step 4: Simplify right side
    405,028.62x = 149,383,181,388.66
  5. Step 5: Solve for x
    x = 149,383,181,388.66/405,028.62
  6. Step 6: Final answer
    x = 368,821.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.