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Finding the Fourth Proportional to 418,874.34, 628,298.13 and 134,563.73

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Solution

The fourth proportional to 418,874.34, 628,298.13 and 134,563.73 is: 201,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,874.34 : 628,298.13 = 134,563.73 : x
  2. Step 2: Convert to fraction form
    418,874.34/628,298.13 = 134,563.73/x
  3. Step 3: Cross multiply
    418,874.34x = 628,298.13 × 134,563.73
  4. Step 4: Simplify right side
    418,874.34x = 84,546,139,924.82
  5. Step 5: Solve for x
    x = 84,546,139,924.82/418,874.34
  6. Step 6: Final answer
    x = 201,841.30

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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.