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Finding the Fourth Proportional to 348.44, 522.70 and 153.36

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Solution

The fourth proportional to 348.44, 522.70 and 153.36 is: 230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.44 : 522.70 = 153.36 : x
  2. Step 2: Convert to fraction form
    348.44/522.70 = 153.36/x
  3. Step 3: Cross multiply
    348.44x = 522.70 × 153.36
  4. Step 4: Simplify right side
    348.44x = 80,161.75
  5. Step 5: Solve for x
    x = 80,161.75/348.44
  6. Step 6: Final answer
    x = 230.06

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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.