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Finding the Fourth Proportional to 536.19, 804.15 and 189.51

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Solution

The fourth proportional to 536.19, 804.15 and 189.51 is: 284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.19 : 804.15 = 189.51 : x
  2. Step 2: Convert to fraction form
    536.19/804.15 = 189.51/x
  3. Step 3: Cross multiply
    536.19x = 804.15 × 189.51
  4. Step 4: Simplify right side
    536.19x = 152,394.47
  5. Step 5: Solve for x
    x = 152,394.47/536.19
  6. Step 6: Final answer
    x = 284.22

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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.