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Finding the Fourth Proportional to 536,843.64, 804,674.94 and 221,128.32

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Solution

The fourth proportional to 536,843.64, 804,674.94 and 221,128.32 is: 331,449.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,843.64 : 804,674.94 = 221,128.32 : x
  2. Step 2: Convert to fraction form
    536,843.64/804,674.94 = 221,128.32/x
  3. Step 3: Cross multiply
    536,843.64x = 804,674.94 × 221,128.32
  4. Step 4: Simplify right side
    536,843.64x = 177,936,417,628.30
  5. Step 5: Solve for x
    x = 177,936,417,628.30/536,843.64
  6. Step 6: Final answer
    x = 331,449.24

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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.