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Finding the Fourth Proportional to 348.30, 522.24 and 165.63

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Solution

The fourth proportional to 348.30, 522.24 and 165.63 is: 248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.30 : 522.24 = 165.63 : x
  2. Step 2: Convert to fraction form
    348.30/522.24 = 165.63/x
  3. Step 3: Cross multiply
    348.30x = 522.24 × 165.63
  4. Step 4: Simplify right side
    348.30x = 86,498.61
  5. Step 5: Solve for x
    x = 86,498.61/348.30
  6. Step 6: Final answer
    x = 248.35

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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.