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Finding the Fourth Proportional to 355,034.01, 489,950.83 and 193,893.80

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Solution

The fourth proportional to 355,034.01, 489,950.83 and 193,893.80 is: 267,575.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,034.01 : 489,950.83 = 193,893.80 : x
  2. Step 2: Convert to fraction form
    355,034.01/489,950.83 = 193,893.80/x
  3. Step 3: Cross multiply
    355,034.01x = 489,950.83 × 193,893.80
  4. Step 4: Simplify right side
    355,034.01x = 94,998,428,241.85
  5. Step 5: Solve for x
    x = 94,998,428,241.85/355,034.01
  6. Step 6: Final answer
    x = 267,575.57

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1.5x scale

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.