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Finding the Fourth Proportional to 354,660.08, 489,429.87 and 193,514

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Solution

The fourth proportional to 354,660.08, 489,429.87 and 193,514 is: 267,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,660.08 : 489,429.87 = 193,514 : x
  2. Step 2: Convert to fraction form
    354,660.08/489,429.87 = 193,514/x
  3. Step 3: Cross multiply
    354,660.08x = 489,429.87 × 193,514
  4. Step 4: Simplify right side
    354,660.08x = 94,711,531,863.18
  5. Step 5: Solve for x
    x = 94,711,531,863.18/354,660.08
  6. Step 6: Final answer
    x = 267,048.75

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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.