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Finding the Fourth Proportional to 275,639.28, 380,183.40 and 253,050

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Solution

The fourth proportional to 275,639.28, 380,183.40 and 253,050 is: 349,026.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,639.28 : 380,183.40 = 253,050 : x
  2. Step 2: Convert to fraction form
    275,639.28/380,183.40 = 253,050/x
  3. Step 3: Cross multiply
    275,639.28x = 380,183.40 × 253,050
  4. Step 4: Simplify right side
    275,639.28x = 96,205,409,370
  5. Step 5: Solve for x
    x = 96,205,409,370/275,639.28
  6. Step 6: Final answer
    x = 349,026.49

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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.