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Finding the Fourth Proportional to 536.63, 805.06 and 171.45

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Solution

The fourth proportional to 536.63, 805.06 and 171.45 is: 257.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.63 : 805.06 = 171.45 : x
  2. Step 2: Convert to fraction form
    536.63/805.06 = 171.45/x
  3. Step 3: Cross multiply
    536.63x = 805.06 × 171.45
  4. Step 4: Simplify right side
    536.63x = 138,027.54
  5. Step 5: Solve for x
    x = 138,027.54/536.63
  6. Step 6: Final answer
    x = 257.21

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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.