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Finding the Fourth Proportional to 419,258.97, 628,800.26 and 134,974.94

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Solution

The fourth proportional to 419,258.97, 628,800.26 and 134,974.94 is: 202,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,258.97 : 628,800.26 = 134,974.94 : x
  2. Step 2: Convert to fraction form
    419,258.97/628,800.26 = 134,974.94/x
  3. Step 3: Cross multiply
    419,258.97x = 628,800.26 × 134,974.94
  4. Step 4: Simplify right side
    419,258.97x = 84,872,273,546.61
  5. Step 5: Solve for x
    x = 84,872,273,546.61/419,258.97
  6. Step 6: Final answer
    x = 202,434.01

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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.