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Finding the Fourth Proportional to 434.26, 651.62 and 174.39

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Solution

The fourth proportional to 434.26, 651.62 and 174.39 is: 261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.26 : 651.62 = 174.39 : x
  2. Step 2: Convert to fraction form
    434.26/651.62 = 174.39/x
  3. Step 3: Cross multiply
    434.26x = 651.62 × 174.39
  4. Step 4: Simplify right side
    434.26x = 113,636.01
  5. Step 5: Solve for x
    x = 113,636.01/434.26
  6. Step 6: Final answer
    x = 261.68

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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.