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Finding the Fourth Proportional to 503,896.80, 756,136.80 and 188,385.60

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Solution

The fourth proportional to 503,896.80, 756,136.80 and 188,385.60 is: 282,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,896.80 : 756,136.80 = 188,385.60 : x
  2. Step 2: Convert to fraction form
    503,896.80/756,136.80 = 188,385.60/x
  3. Step 3: Cross multiply
    503,896.80x = 756,136.80 × 188,385.60
  4. Step 4: Simplify right side
    503,896.80x = 142,445,284,750.08
  5. Step 5: Solve for x
    x = 142,445,284,750.08/503,896.80
  6. Step 6: Final answer
    x = 282,687.42

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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.