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Finding the Fourth Proportional to 275,803.70, 379,729.28 and 235,355.14

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Solution

The fourth proportional to 275,803.70, 379,729.28 and 235,355.14 is: 324,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,803.70 : 379,729.28 = 235,355.14 : x
  2. Step 2: Convert to fraction form
    275,803.70/379,729.28 = 235,355.14/x
  3. Step 3: Cross multiply
    275,803.70x = 379,729.28 × 235,355.14
  4. Step 4: Simplify right side
    275,803.70x = 89,371,235,730.40
  5. Step 5: Solve for x
    x = 89,371,235,730.40/275,803.70
  6. Step 6: Final answer
    x = 324,039.29

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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.