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Finding the Fourth Proportional to 526.37, 788.43 and 251.61

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Solution

The fourth proportional to 526.37, 788.43 and 251.61 is: 376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.37 : 788.43 = 251.61 : x
  2. Step 2: Convert to fraction form
    526.37/788.43 = 251.61/x
  3. Step 3: Cross multiply
    526.37x = 788.43 × 251.61
  4. Step 4: Simplify right side
    526.37x = 198,374.86
  5. Step 5: Solve for x
    x = 198,374.86/526.37
  6. Step 6: Final answer
    x = 376.88

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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.