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Finding the Fourth Proportional to 551.58, 826.55 and 277.12

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Solution

The fourth proportional to 551.58, 826.55 and 277.12 is: 415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.58 : 826.55 = 277.12 : x
  2. Step 2: Convert to fraction form
    551.58/826.55 = 277.12/x
  3. Step 3: Cross multiply
    551.58x = 826.55 × 277.12
  4. Step 4: Simplify right side
    551.58x = 229,053.54
  5. Step 5: Solve for x
    x = 229,053.54/551.58
  6. Step 6: Final answer
    x = 415.27

Related Problems

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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.