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Finding the Fourth Proportional to 355,041.08, 489,965.32 and 193,894.82

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Solution

The fourth proportional to 355,041.08, 489,965.32 and 193,894.82 is: 267,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,041.08 : 489,965.32 = 193,894.82 : x
  2. Step 2: Convert to fraction form
    355,041.08/489,965.32 = 193,894.82/x
  3. Step 3: Cross multiply
    355,041.08x = 489,965.32 × 193,894.82
  4. Step 4: Simplify right side
    355,041.08x = 95,001,737,527.64
  5. Step 5: Solve for x
    x = 95,001,737,527.64/355,041.08
  6. Step 6: Final answer
    x = 267,579.56

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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.