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Finding the Fourth Proportional to 526.25, 789.28 and 179.58

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Solution

The fourth proportional to 526.25, 789.28 and 179.58 is: 269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.25 : 789.28 = 179.58 : x
  2. Step 2: Convert to fraction form
    526.25/789.28 = 179.58/x
  3. Step 3: Cross multiply
    526.25x = 789.28 × 179.58
  4. Step 4: Simplify right side
    526.25x = 141,738.00
  5. Step 5: Solve for x
    x = 141,738.00/526.25
  6. Step 6: Final answer
    x = 269.34

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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.