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Finding the Fourth Proportional to 379,540.08, 569,408.94 and 113,300.73

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Solution

The fourth proportional to 379,540.08, 569,408.94 and 113,300.73 is: 169,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,540.08 : 569,408.94 = 113,300.73 : x
  2. Step 2: Convert to fraction form
    379,540.08/569,408.94 = 113,300.73/x
  3. Step 3: Cross multiply
    379,540.08x = 569,408.94 × 113,300.73
  4. Step 4: Simplify right side
    379,540.08x = 64,514,448,570.53
  5. Step 5: Solve for x
    x = 64,514,448,570.53/379,540.08
  6. Step 6: Final answer
    x = 169,980.59

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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.