Home / 257,174.20-385,620.67-204,206.42

Finding the Fourth Proportional to 257,174.20, 385,620.67 and 204,206.42

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Solution

The fourth proportional to 257,174.20, 385,620.67 and 204,206.42 is: 306,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,174.20 : 385,620.67 = 204,206.42 : x
  2. Step 2: Convert to fraction form
    257,174.20/385,620.67 = 204,206.42/x
  3. Step 3: Cross multiply
    257,174.20x = 385,620.67 × 204,206.42
  4. Step 4: Simplify right side
    257,174.20x = 78,746,216,498.70
  5. Step 5: Solve for x
    x = 78,746,216,498.70/257,174.20
  6. Step 6: Final answer
    x = 306,197.96

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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.