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Finding the Fourth Proportional to 355,039.48, 489,958.38 and 193,899.27

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Solution

The fourth proportional to 355,039.48, 489,958.38 and 193,899.27 is: 267,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,039.48 : 489,958.38 = 193,899.27 : x
  2. Step 2: Convert to fraction form
    355,039.48/489,958.38 = 193,899.27/x
  3. Step 3: Cross multiply
    355,039.48x = 489,958.38 × 193,899.27
  4. Step 4: Simplify right side
    355,039.48x = 95,002,572,212.38
  5. Step 5: Solve for x
    x = 95,002,572,212.38/355,039.48
  6. Step 6: Final answer
    x = 267,583.12

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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.