Home / 331,480.78-457,431.34-202,635.04

Finding the Fourth Proportional to 331,480.78, 457,431.34 and 202,635.04

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Solution

The fourth proportional to 331,480.78, 457,431.34 and 202,635.04 is: 279,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,480.78 : 457,431.34 = 202,635.04 : x
  2. Step 2: Convert to fraction form
    331,480.78/457,431.34 = 202,635.04/x
  3. Step 3: Cross multiply
    331,480.78x = 457,431.34 × 202,635.04
  4. Step 4: Simplify right side
    331,480.78x = 92,691,617,878.15
  5. Step 5: Solve for x
    x = 92,691,617,878.15/331,480.78
  6. Step 6: Final answer
    x = 279,628.94

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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.