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Finding the Fourth Proportional to 328,235.55, 492,353.33 and 275,747.55

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Solution

The fourth proportional to 328,235.55, 492,353.33 and 275,747.55 is: 413,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,235.55 : 492,353.33 = 275,747.55 : x
  2. Step 2: Convert to fraction form
    328,235.55/492,353.33 = 275,747.55/x
  3. Step 3: Cross multiply
    328,235.55x = 492,353.33 × 275,747.55
  4. Step 4: Simplify right side
    328,235.55x = 135,765,223,103.10
  5. Step 5: Solve for x
    x = 135,765,223,103.10/328,235.55
  6. Step 6: Final answer
    x = 413,621.33

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.