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Finding the Fourth Proportional to 328,863.70, 493,259.10 and 92,230.30

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Solution

The fourth proportional to 328,863.70, 493,259.10 and 92,230.30 is: 138,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,863.70 : 493,259.10 = 92,230.30 : x
  2. Step 2: Convert to fraction form
    328,863.70/493,259.10 = 92,230.30/x
  3. Step 3: Cross multiply
    328,863.70x = 493,259.10 × 92,230.30
  4. Step 4: Simplify right side
    328,863.70x = 45,493,434,770.73
  5. Step 5: Solve for x
    x = 45,493,434,770.73/328,863.70
  6. Step 6: Final answer
    x = 138,335.23

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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.