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Finding the Fourth Proportional to 551.35, 826.98 and 291.52

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Solution

The fourth proportional to 551.35, 826.98 and 291.52 is: 437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.35 : 826.98 = 291.52 : x
  2. Step 2: Convert to fraction form
    551.35/826.98 = 291.52/x
  3. Step 3: Cross multiply
    551.35x = 826.98 × 291.52
  4. Step 4: Simplify right side
    551.35x = 241,081.21
  5. Step 5: Solve for x
    x = 241,081.21/551.35
  6. Step 6: Final answer
    x = 437.26

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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.