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Finding the Fourth Proportional to 525.16, 787.08 and 251.36

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Solution

The fourth proportional to 525.16, 787.08 and 251.36 is: 376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.16 : 787.08 = 251.36 : x
  2. Step 2: Convert to fraction form
    525.16/787.08 = 251.36/x
  3. Step 3: Cross multiply
    525.16x = 787.08 × 251.36
  4. Step 4: Simplify right side
    525.16x = 197,840.43
  5. Step 5: Solve for x
    x = 197,840.43/525.16
  6. Step 6: Final answer
    x = 376.72

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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.