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Finding the Fourth Proportional to 288,375.88, 397,739.46 and 248,156.68

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Solution

The fourth proportional to 288,375.88, 397,739.46 and 248,156.68 is: 342,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,375.88 : 397,739.46 = 248,156.68 : x
  2. Step 2: Convert to fraction form
    288,375.88/397,739.46 = 248,156.68/x
  3. Step 3: Cross multiply
    288,375.88x = 397,739.46 × 248,156.68
  4. Step 4: Simplify right side
    288,375.88x = 98,701,703,898.59
  5. Step 5: Solve for x
    x = 98,701,703,898.59/288,375.88
  6. Step 6: Final answer
    x = 342,267.54

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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.