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Finding the Fourth Proportional to 379,136.16, 568,702.61 and 154,446.48

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Solution

The fourth proportional to 379,136.16, 568,702.61 and 154,446.48 is: 231,669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,136.16 : 568,702.61 = 154,446.48 : x
  2. Step 2: Convert to fraction form
    379,136.16/568,702.61 = 154,446.48/x
  3. Step 3: Cross multiply
    379,136.16x = 568,702.61 × 154,446.48
  4. Step 4: Simplify right side
    379,136.16x = 87,834,116,281.31
  5. Step 5: Solve for x
    x = 87,834,116,281.31/379,136.16
  6. Step 6: Final answer
    x = 231,669.06

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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.