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Finding the Fourth Proportional to 251,078.51, 376,629.16 and 71,176.80

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Solution

The fourth proportional to 251,078.51, 376,629.16 and 71,176.80 is: 106,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,078.51 : 376,629.16 = 71,176.80 : x
  2. Step 2: Convert to fraction form
    251,078.51/376,629.16 = 71,176.80/x
  3. Step 3: Cross multiply
    251,078.51x = 376,629.16 × 71,176.80
  4. Step 4: Simplify right side
    251,078.51x = 26,807,258,395.49
  5. Step 5: Solve for x
    x = 26,807,258,395.49/251,078.51
  6. Step 6: Final answer
    x = 106,768.43

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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.