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Finding the Fourth Proportional to 331,255.70, 496,948.35 and 141,715.70

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Solution

The fourth proportional to 331,255.70, 496,948.35 and 141,715.70 is: 212,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,255.70 : 496,948.35 = 141,715.70 : x
  2. Step 2: Convert to fraction form
    331,255.70/496,948.35 = 141,715.70/x
  3. Step 3: Cross multiply
    331,255.70x = 496,948.35 × 141,715.70
  4. Step 4: Simplify right side
    331,255.70x = 70,425,383,284.10
  5. Step 5: Solve for x
    x = 70,425,383,284.10/331,255.70
  6. Step 6: Final answer
    x = 212,601.27

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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.