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Finding the Fourth Proportional to 525.29, 787.26 and 251.48

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Solution

The fourth proportional to 525.29, 787.26 and 251.48 is: 376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.29 : 787.26 = 251.48 : x
  2. Step 2: Convert to fraction form
    525.29/787.26 = 251.48/x
  3. Step 3: Cross multiply
    525.29x = 787.26 × 251.48
  4. Step 4: Simplify right side
    525.29x = 197,980.14
  5. Step 5: Solve for x
    x = 197,980.14/525.29
  6. Step 6: Final answer
    x = 376.90

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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.