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Finding the Fourth Proportional to 379,750.86, 523,579.83 and 243,544.50

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Solution

The fourth proportional to 379,750.86, 523,579.83 and 243,544.50 is: 335,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,750.86 : 523,579.83 = 243,544.50 : x
  2. Step 2: Convert to fraction form
    379,750.86/523,579.83 = 243,544.50/x
  3. Step 3: Cross multiply
    379,750.86x = 523,579.83 × 243,544.50
  4. Step 4: Simplify right side
    379,750.86x = 127,514,987,907.44
  5. Step 5: Solve for x
    x = 127,514,987,907.44/379,750.86
  6. Step 6: Final answer
    x = 335,785.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.