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Finding the Fourth Proportional to 355,054.05, 489,952.89 and 193,876.32

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Solution

The fourth proportional to 355,054.05, 489,952.89 and 193,876.32 is: 267,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,054.05 : 489,952.89 = 193,876.32 : x
  2. Step 2: Convert to fraction form
    355,054.05/489,952.89 = 193,876.32/x
  3. Step 3: Cross multiply
    355,054.05x = 489,952.89 × 193,876.32
  4. Step 4: Simplify right side
    355,054.05x = 94,990,263,286.56
  5. Step 5: Solve for x
    x = 94,990,263,286.56/355,054.05
  6. Step 6: Final answer
    x = 267,537.47

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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.