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Finding the Fourth Proportional to 238,960.98, 329,655.42 and 154,105.38

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Solution

The fourth proportional to 238,960.98, 329,655.42 and 154,105.38 is: 212,594.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,960.98 : 329,655.42 = 154,105.38 : x
  2. Step 2: Convert to fraction form
    238,960.98/329,655.42 = 154,105.38/x
  3. Step 3: Cross multiply
    238,960.98x = 329,655.42 × 154,105.38
  4. Step 4: Simplify right side
    238,960.98x = 50,801,673,768.16
  5. Step 5: Solve for x
    x = 50,801,673,768.16/238,960.98
  6. Step 6: Final answer
    x = 212,594.01

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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.