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Finding the Fourth Proportional to 379,203.72, 568,890.32 and 142,548.45

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Solution

The fourth proportional to 379,203.72, 568,890.32 and 142,548.45 is: 213,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,203.72 : 568,890.32 = 142,548.45 : x
  2. Step 2: Convert to fraction form
    379,203.72/568,890.32 = 142,548.45/x
  3. Step 3: Cross multiply
    379,203.72x = 568,890.32 × 142,548.45
  4. Step 4: Simplify right side
    379,203.72x = 81,094,433,336.00
  5. Step 5: Solve for x
    x = 81,094,433,336.00/379,203.72
  6. Step 6: Final answer
    x = 213,854.53

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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.