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Finding the Fourth Proportional to 379,189.56, 568,136.96 and 208,554.11

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Solution

The fourth proportional to 379,189.56, 568,136.96 and 208,554.11 is: 312,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,189.56 : 568,136.96 = 208,554.11 : x
  2. Step 2: Convert to fraction form
    379,189.56/568,136.96 = 208,554.11/x
  3. Step 3: Cross multiply
    379,189.56x = 568,136.96 × 208,554.11
  4. Step 4: Simplify right side
    379,189.56x = 118,487,294,167.45
  5. Step 5: Solve for x
    x = 118,487,294,167.45/379,189.56
  6. Step 6: Final answer
    x = 312,475.10

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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.