Home / 257,173.20-385,619.17-204,205.42

Finding the Fourth Proportional to 257,173.20, 385,619.17 and 204,205.42

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Solution

The fourth proportional to 257,173.20, 385,619.17 and 204,205.42 is: 306,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,173.20 : 385,619.17 = 204,205.42 : x
  2. Step 2: Convert to fraction form
    257,173.20/385,619.17 = 204,205.42/x
  3. Step 3: Cross multiply
    257,173.20x = 385,619.17 × 204,205.42
  4. Step 4: Simplify right side
    257,173.20x = 78,745,524,569.90
  5. Step 5: Solve for x
    x = 78,745,524,569.90/257,173.20
  6. Step 6: Final answer
    x = 306,196.46

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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.