Home / 257,173.38-385,619.45-204,205.61

Finding the Fourth Proportional to 257,173.38, 385,619.45 and 204,205.61

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Solution

The fourth proportional to 257,173.38, 385,619.45 and 204,205.61 is: 306,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,173.38 : 385,619.45 = 204,205.61 : x
  2. Step 2: Convert to fraction form
    257,173.38/385,619.45 = 204,205.61/x
  3. Step 3: Cross multiply
    257,173.38x = 385,619.45 × 204,205.61
  4. Step 4: Simplify right side
    257,173.38x = 78,745,653,597.53
  5. Step 5: Solve for x
    x = 78,745,653,597.53/257,173.38
  6. Step 6: Final answer
    x = 306,196.75

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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.