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Finding the Fourth Proportional to 418,808.08, 628,152.84 and 134,523.34

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Solution

The fourth proportional to 418,808.08, 628,152.84 and 134,523.34 is: 201,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,808.08 : 628,152.84 = 134,523.34 : x
  2. Step 2: Convert to fraction form
    418,808.08/628,152.84 = 134,523.34/x
  3. Step 3: Cross multiply
    418,808.08x = 628,152.84 × 134,523.34
  4. Step 4: Simplify right side
    418,808.08x = 84,501,218,067.29
  5. Step 5: Solve for x
    x = 84,501,218,067.29/418,808.08
  6. Step 6: Final answer
    x = 201,765.97

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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.