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Finding the Fourth Proportional to 257,234.20, 385,195.20 and 204,746.20

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Solution

The fourth proportional to 257,234.20, 385,195.20 and 204,746.20 is: 306,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,234.20 : 385,195.20 = 204,746.20 : x
  2. Step 2: Convert to fraction form
    257,234.20/385,195.20 = 204,746.20/x
  3. Step 3: Cross multiply
    257,234.20x = 385,195.20 × 204,746.20
  4. Step 4: Simplify right side
    257,234.20x = 78,867,253,458.24
  5. Step 5: Solve for x
    x = 78,867,253,458.24/257,234.20
  6. Step 6: Final answer
    x = 306,597.08

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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.