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Finding the Fourth Proportional to 348.10, 522.45 and 185.90

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Solution

The fourth proportional to 348.10, 522.45 and 185.90 is: 279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.10 : 522.45 = 185.90 : x
  2. Step 2: Convert to fraction form
    348.10/522.45 = 185.90/x
  3. Step 3: Cross multiply
    348.10x = 522.45 × 185.90
  4. Step 4: Simplify right side
    348.10x = 97,120.84
  5. Step 5: Solve for x
    x = 97,120.84/348.10
  6. Step 6: Final answer
    x = 279.00

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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.