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Finding the Fourth Proportional to 227,687.20, 341,402.80 and 87,450.40

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Solution

The fourth proportional to 227,687.20, 341,402.80 and 87,450.40 is: 131,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,687.20 : 341,402.80 = 87,450.40 : x
  2. Step 2: Convert to fraction form
    227,687.20/341,402.80 = 87,450.40/x
  3. Step 3: Cross multiply
    227,687.20x = 341,402.80 × 87,450.40
  4. Step 4: Simplify right side
    227,687.20x = 29,855,811,421.12
  5. Step 5: Solve for x
    x = 29,855,811,421.12/227,687.20
  6. Step 6: Final answer
    x = 131,126.44

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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.