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Finding the Fourth Proportional to 388,676.25, 536,507.46 and 227,583.09

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Solution

The fourth proportional to 388,676.25, 536,507.46 and 227,583.09 is: 314,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,676.25 : 536,507.46 = 227,583.09 : x
  2. Step 2: Convert to fraction form
    388,676.25/536,507.46 = 227,583.09/x
  3. Step 3: Cross multiply
    388,676.25x = 536,507.46 × 227,583.09
  4. Step 4: Simplify right side
    388,676.25x = 122,100,025,554.85
  5. Step 5: Solve for x
    x = 122,100,025,554.85/388,676.25
  6. Step 6: Final answer
    x = 314,143.26

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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.