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Finding the Fourth Proportional to 551.10, 826.76 and 242.95

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Solution

The fourth proportional to 551.10, 826.76 and 242.95 is: 364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.10 : 826.76 = 242.95 : x
  2. Step 2: Convert to fraction form
    551.10/826.76 = 242.95/x
  3. Step 3: Cross multiply
    551.10x = 826.76 × 242.95
  4. Step 4: Simplify right side
    551.10x = 200,861.34
  5. Step 5: Solve for x
    x = 200,861.34/551.10
  6. Step 6: Final answer
    x = 364.47

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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.