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Finding the Fourth Proportional to 551.39, 825.87 and 525.88

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Solution

The fourth proportional to 551.39, 825.87 and 525.88 is: 787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.39 : 825.87 = 525.88 : x
  2. Step 2: Convert to fraction form
    551.39/825.87 = 525.88/x
  3. Step 3: Cross multiply
    551.39x = 825.87 × 525.88
  4. Step 4: Simplify right side
    551.39x = 434,304.39
  5. Step 5: Solve for x
    x = 434,304.39/551.39
  6. Step 6: Final answer
    x = 787.65

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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.