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Finding the Fourth Proportional to 536.89, 805.19 and 190.18

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Solution

The fourth proportional to 536.89, 805.19 and 190.18 is: 285.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.89 : 805.19 = 190.18 : x
  2. Step 2: Convert to fraction form
    536.89/805.19 = 190.18/x
  3. Step 3: Cross multiply
    536.89x = 805.19 × 190.18
  4. Step 4: Simplify right side
    536.89x = 153,128.55
  5. Step 5: Solve for x
    x = 153,128.55/536.89
  6. Step 6: Final answer
    x = 285.21

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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.