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Finding the Fourth Proportional to 536,851.90, 804,687.36 and 221,136.58

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Solution

The fourth proportional to 536,851.90, 804,687.36 and 221,136.58 is: 331,461.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,851.90 : 804,687.36 = 221,136.58 : x
  2. Step 2: Convert to fraction form
    536,851.90/804,687.36 = 221,136.58/x
  3. Step 3: Cross multiply
    536,851.90x = 804,687.36 × 221,136.58
  4. Step 4: Simplify right side
    536,851.90x = 177,945,810,759.63
  5. Step 5: Solve for x
    x = 177,945,810,759.63/536,851.90
  6. Step 6: Final answer
    x = 331,461.64

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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.