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Finding the Fourth Proportional to 551.76, 826.95 and 277.92

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Solution

The fourth proportional to 551.76, 826.95 and 277.92 is: 416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.76 : 826.95 = 277.92 : x
  2. Step 2: Convert to fraction form
    551.76/826.95 = 277.92/x
  3. Step 3: Cross multiply
    551.76x = 826.95 × 277.92
  4. Step 4: Simplify right side
    551.76x = 229,825.94
  5. Step 5: Solve for x
    x = 229,825.94/551.76
  6. Step 6: Final answer
    x = 416.53

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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.