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Finding the Fourth Proportional to 348.02, 522.12 and 116.90

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Solution

The fourth proportional to 348.02, 522.12 and 116.90 is: 175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.02 : 522.12 = 116.90 : x
  2. Step 2: Convert to fraction form
    348.02/522.12 = 116.90/x
  3. Step 3: Cross multiply
    348.02x = 522.12 × 116.90
  4. Step 4: Simplify right side
    348.02x = 61,035.83
  5. Step 5: Solve for x
    x = 61,035.83/348.02
  6. Step 6: Final answer
    x = 175.38

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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.