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Finding the Fourth Proportional to 331,758.40, 497,540.40 and 154,222.60

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Solution

The fourth proportional to 331,758.40, 497,540.40 and 154,222.60 is: 231,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,758.40 : 497,540.40 = 154,222.60 : x
  2. Step 2: Convert to fraction form
    331,758.40/497,540.40 = 154,222.60/x
  3. Step 3: Cross multiply
    331,758.40x = 497,540.40 × 154,222.60
  4. Step 4: Simplify right side
    331,758.40x = 76,731,974,093.04
  5. Step 5: Solve for x
    x = 76,731,974,093.04/331,758.40
  6. Step 6: Final answer
    x = 231,288.72

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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.