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Finding the Fourth Proportional to 551.05, 826.72 and 242.97

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Solution

The fourth proportional to 551.05, 826.72 and 242.97 is: 364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.05 : 826.72 = 242.97 : x
  2. Step 2: Convert to fraction form
    551.05/826.72 = 242.97/x
  3. Step 3: Cross multiply
    551.05x = 826.72 × 242.97
  4. Step 4: Simplify right side
    551.05x = 200,867.55
  5. Step 5: Solve for x
    x = 200,867.55/551.05
  6. Step 6: Final answer
    x = 364.52

Related Problems

Find fourth proportional to 275.52, 413.36 and 121.49
Half scale
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Double scale
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Similar ratio
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1.5x scale

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.