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Finding the Fourth Proportional to 328,730.20, 493,556.10 and 204,314.20

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Solution

The fourth proportional to 328,730.20, 493,556.10 and 204,314.20 is: 306,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,730.20 : 493,556.10 = 204,314.20 : x
  2. Step 2: Convert to fraction form
    328,730.20/493,556.10 = 204,314.20/x
  3. Step 3: Cross multiply
    328,730.20x = 493,556.10 × 204,314.20
  4. Step 4: Simplify right side
    328,730.20x = 100,840,519,726.62
  5. Step 5: Solve for x
    x = 100,840,519,726.62/328,730.20
  6. Step 6: Final answer
    x = 306,757.70

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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.