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Finding the Fourth Proportional to 279,667.92, 385,942.43 and 152,344.44

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Solution

The fourth proportional to 279,667.92, 385,942.43 and 152,344.44 is: 210,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,667.92 : 385,942.43 = 152,344.44 : x
  2. Step 2: Convert to fraction form
    279,667.92/385,942.43 = 152,344.44/x
  3. Step 3: Cross multiply
    279,667.92x = 385,942.43 × 152,344.44
  4. Step 4: Simplify right side
    279,667.92x = 58,796,182,608.87
  5. Step 5: Solve for x
    x = 58,796,182,608.87/279,667.92
  6. Step 6: Final answer
    x = 210,235.71

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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.