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Finding the Fourth Proportional to 303,384.35, 418,679.27 and 167,427.09

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Solution

The fourth proportional to 303,384.35, 418,679.27 and 167,427.09 is: 231,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,384.35 : 418,679.27 = 167,427.09 : x
  2. Step 2: Convert to fraction form
    303,384.35/418,679.27 = 167,427.09/x
  3. Step 3: Cross multiply
    303,384.35x = 418,679.27 × 167,427.09
  4. Step 4: Simplify right side
    303,384.35x = 70,098,251,819.42
  5. Step 5: Solve for x
    x = 70,098,251,819.42/303,384.35
  6. Step 6: Final answer
    x = 231,054.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.