Home / 257,546.40-385,226.10-231,083.70

Finding the Fourth Proportional to 257,546.40, 385,226.10 and 231,083.70

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Solution

The fourth proportional to 257,546.40, 385,226.10 and 231,083.70 is: 345,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,546.40 : 385,226.10 = 231,083.70 : x
  2. Step 2: Convert to fraction form
    257,546.40/385,226.10 = 231,083.70/x
  3. Step 3: Cross multiply
    257,546.40x = 385,226.10 × 231,083.70
  4. Step 4: Simplify right side
    257,546.40x = 89,019,472,524.57
  5. Step 5: Solve for x
    x = 89,019,472,524.57/257,546.40
  6. Step 6: Final answer
    x = 345,644.41

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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.