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Finding the Fourth Proportional to 536.54, 805.02 and 189.92

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Solution

The fourth proportional to 536.54, 805.02 and 189.92 is: 284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.54 : 805.02 = 189.92 : x
  2. Step 2: Convert to fraction form
    536.54/805.02 = 189.92/x
  3. Step 3: Cross multiply
    536.54x = 805.02 × 189.92
  4. Step 4: Simplify right side
    536.54x = 152,889.40
  5. Step 5: Solve for x
    x = 152,889.40/536.54
  6. Step 6: Final answer
    x = 284.95

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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.