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Finding the Fourth Proportional to 418,662.70, 628,139.85 and 182,175.10

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Solution

The fourth proportional to 418,662.70, 628,139.85 and 182,175.10 is: 273,326.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,662.70 : 628,139.85 = 182,175.10 : x
  2. Step 2: Convert to fraction form
    418,662.70/628,139.85 = 182,175.10/x
  3. Step 3: Cross multiply
    418,662.70x = 628,139.85 × 182,175.10
  4. Step 4: Simplify right side
    418,662.70x = 114,431,439,987.74
  5. Step 5: Solve for x
    x = 114,431,439,987.74/418,662.70
  6. Step 6: Final answer
    x = 273,326.09

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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.