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Finding the Fourth Proportional to 526.47, 789.80 and 252.37

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Solution

The fourth proportional to 526.47, 789.80 and 252.37 is: 378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.47 : 789.80 = 252.37 : x
  2. Step 2: Convert to fraction form
    526.47/789.80 = 252.37/x
  3. Step 3: Cross multiply
    526.47x = 789.80 × 252.37
  4. Step 4: Simplify right side
    526.47x = 199,321.83
  5. Step 5: Solve for x
    x = 199,321.83/526.47
  6. Step 6: Final answer
    x = 378.60

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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.