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Finding the Fourth Proportional to 427,246.76, 641,255.34 and 227,733.32

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Solution

The fourth proportional to 427,246.76, 641,255.34 and 227,733.32 is: 341,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,246.76 : 641,255.34 = 227,733.32 : x
  2. Step 2: Convert to fraction form
    427,246.76/641,255.34 = 227,733.32/x
  3. Step 3: Cross multiply
    427,246.76x = 641,255.34 × 227,733.32
  4. Step 4: Simplify right side
    427,246.76x = 146,035,207,545.93
  5. Step 5: Solve for x
    x = 146,035,207,545.93/427,246.76
  6. Step 6: Final answer
    x = 341,805.30

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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.