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Finding the Fourth Proportional to 379,339.54, 569,328.55 and 189,743.04

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Solution

The fourth proportional to 379,339.54, 569,328.55 and 189,743.04 is: 284,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,339.54 : 569,328.55 = 189,743.04 : x
  2. Step 2: Convert to fraction form
    379,339.54/569,328.55 = 189,743.04/x
  3. Step 3: Cross multiply
    379,339.54x = 569,328.55 × 189,743.04
  4. Step 4: Simplify right side
    379,339.54x = 108,026,129,361.43
  5. Step 5: Solve for x
    x = 108,026,129,361.43/379,339.54
  6. Step 6: Final answer
    x = 284,774.24

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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.