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Finding the Fourth Proportional to 550.53, 826.08 and 448.98

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Solution

The fourth proportional to 550.53, 826.08 and 448.98 is: 673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.53 : 826.08 = 448.98 : x
  2. Step 2: Convert to fraction form
    550.53/826.08 = 448.98/x
  3. Step 3: Cross multiply
    550.53x = 826.08 × 448.98
  4. Step 4: Simplify right side
    550.53x = 370,893.40
  5. Step 5: Solve for x
    x = 370,893.40/550.53
  6. Step 6: Final answer
    x = 673.70

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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.