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Finding the Fourth Proportional to 451.52, 677.70 and 235.26

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Solution

The fourth proportional to 451.52, 677.70 and 235.26 is: 353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.52 : 677.70 = 235.26 : x
  2. Step 2: Convert to fraction form
    451.52/677.70 = 235.26/x
  3. Step 3: Cross multiply
    451.52x = 677.70 × 235.26
  4. Step 4: Simplify right side
    451.52x = 159,435.70
  5. Step 5: Solve for x
    x = 159,435.70/451.52
  6. Step 6: Final answer
    x = 353.11

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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.