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Finding the Fourth Proportional to 536.21, 740.01 and 300.18

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Solution

The fourth proportional to 536.21, 740.01 and 300.18 is: 414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.21 : 740.01 = 300.18 : x
  2. Step 2: Convert to fraction form
    536.21/740.01 = 300.18/x
  3. Step 3: Cross multiply
    536.21x = 740.01 × 300.18
  4. Step 4: Simplify right side
    536.21x = 222,134.70
  5. Step 5: Solve for x
    x = 222,134.70/536.21
  6. Step 6: Final answer
    x = 414.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.