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Finding the Fourth Proportional to 900, 1,348.98 and 351.96

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Solution

The fourth proportional to 900, 1,348.98 and 351.96 is: 527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    900 : 1,348.98 = 351.96 : x
  2. Step 2: Convert to fraction form
    900/1,348.98 = 351.96/x
  3. Step 3: Cross multiply
    900x = 1,348.98 × 351.96
  4. Step 4: Simplify right side
    900x = 474,787.00
  5. Step 5: Solve for x
    x = 474,787.00/900
  6. Step 6: Final answer
    x = 527.54

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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.