Home / 257,172.20-385,617.67-204,204.42

Finding the Fourth Proportional to 257,172.20, 385,617.67 and 204,204.42

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Solution

The fourth proportional to 257,172.20, 385,617.67 and 204,204.42 is: 306,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,172.20 : 385,617.67 = 204,204.42 : x
  2. Step 2: Convert to fraction form
    257,172.20/385,617.67 = 204,204.42/x
  3. Step 3: Cross multiply
    257,172.20x = 385,617.67 × 204,204.42
  4. Step 4: Simplify right side
    257,172.20x = 78,744,832,644.10
  5. Step 5: Solve for x
    x = 78,744,832,644.10/257,172.20
  6. Step 6: Final answer
    x = 306,194.97

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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.