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Finding the Fourth Proportional to 354,514.94, 489,230.62 and 193,369.98

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Solution

The fourth proportional to 354,514.94, 489,230.62 and 193,369.98 is: 266,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,514.94 : 489,230.62 = 193,369.98 : x
  2. Step 2: Convert to fraction form
    354,514.94/489,230.62 = 193,369.98/x
  3. Step 3: Cross multiply
    354,514.94x = 489,230.62 × 193,369.98
  4. Step 4: Simplify right side
    354,514.94x = 94,602,515,204.79
  5. Step 5: Solve for x
    x = 94,602,515,204.79/354,514.94
  6. Step 6: Final answer
    x = 266,850.57

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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.