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Finding the Fourth Proportional to 402, 554.81 and 244.61

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Solution

The fourth proportional to 402, 554.81 and 244.61 is: 337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    402 : 554.81 = 244.61 : x
  2. Step 2: Convert to fraction form
    402/554.81 = 244.61/x
  3. Step 3: Cross multiply
    402x = 554.81 × 244.61
  4. Step 4: Simplify right side
    402x = 135,708.08
  5. Step 5: Solve for x
    x = 135,708.08/402
  6. Step 6: Final answer
    x = 337.58

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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.