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Finding the Fourth Proportional to 355,076.75, 489,998.33 and 193,932.45

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Solution

The fourth proportional to 355,076.75, 489,998.33 and 193,932.45 is: 267,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,076.75 : 489,998.33 = 193,932.45 : x
  2. Step 2: Convert to fraction form
    355,076.75/489,998.33 = 193,932.45/x
  3. Step 3: Cross multiply
    355,076.75x = 489,998.33 × 193,932.45
  4. Step 4: Simplify right side
    355,076.75x = 95,026,576,632.81
  5. Step 5: Solve for x
    x = 95,026,576,632.81/355,076.75
  6. Step 6: Final answer
    x = 267,622.64

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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.