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Finding the Fourth Proportional to 275,219.52, 379,818.28 and 207,114

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Solution

The fourth proportional to 275,219.52, 379,818.28 and 207,114 is: 285,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,219.52 : 379,818.28 = 207,114 : x
  2. Step 2: Convert to fraction form
    275,219.52/379,818.28 = 207,114/x
  3. Step 3: Cross multiply
    275,219.52x = 379,818.28 × 207,114
  4. Step 4: Simplify right side
    275,219.52x = 78,665,683,243.92
  5. Step 5: Solve for x
    x = 78,665,683,243.92/275,219.52
  6. Step 6: Final answer
    x = 285,828.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.