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Finding the Fourth Proportional to 427,500.44, 641,747.63 and 250,134.74

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Solution

The fourth proportional to 427,500.44, 641,747.63 and 250,134.74 is: 375,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,500.44 : 641,747.63 = 250,134.74 : x
  2. Step 2: Convert to fraction form
    427,500.44/641,747.63 = 250,134.74/x
  3. Step 3: Cross multiply
    427,500.44x = 641,747.63 × 250,134.74
  4. Step 4: Simplify right side
    427,500.44x = 160,523,373,992.27
  5. Step 5: Solve for x
    x = 160,523,373,992.27/427,500.44
  6. Step 6: Final answer
    x = 375,492.89

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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.