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Finding the Fourth Proportional to 355,052.34, 489,969.63 and 193,907.34

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Solution

The fourth proportional to 355,052.34, 489,969.63 and 193,907.34 is: 267,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,052.34 : 489,969.63 = 193,907.34 : x
  2. Step 2: Convert to fraction form
    355,052.34/489,969.63 = 193,907.34/x
  3. Step 3: Cross multiply
    355,052.34x = 489,969.63 × 193,907.34
  4. Step 4: Simplify right side
    355,052.34x = 95,008,707,634.08
  5. Step 5: Solve for x
    x = 95,008,707,634.08/355,052.34
  6. Step 6: Final answer
    x = 267,590.71

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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.