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Finding the Fourth Proportional to 248,383.58, 342,010.28 and 187,218.65

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Solution

The fourth proportional to 248,383.58, 342,010.28 and 187,218.65 is: 257,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,383.58 : 342,010.28 = 187,218.65 : x
  2. Step 2: Convert to fraction form
    248,383.58/342,010.28 = 187,218.65/x
  3. Step 3: Cross multiply
    248,383.58x = 342,010.28 × 187,218.65
  4. Step 4: Simplify right side
    248,383.58x = 64,030,704,230.79
  5. Step 5: Solve for x
    x = 64,030,704,230.79/248,383.58
  6. Step 6: Final answer
    x = 257,789.61

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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.