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Finding the Fourth Proportional to 227,661.89, 341,509.42 and 87,420.52

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Solution

The fourth proportional to 227,661.89, 341,509.42 and 87,420.52 is: 131,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,661.89 : 341,509.42 = 87,420.52 : x
  2. Step 2: Convert to fraction form
    227,661.89/341,509.42 = 87,420.52/x
  3. Step 3: Cross multiply
    227,661.89x = 341,509.42 × 87,420.52
  4. Step 4: Simplify right side
    227,661.89x = 29,854,929,204.73
  5. Step 5: Solve for x
    x = 29,854,929,204.73/227,661.89
  6. Step 6: Final answer
    x = 131,137.14

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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.