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Finding the Fourth Proportional to 536.35, 740.21 and 326.54

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Solution

The fourth proportional to 536.35, 740.21 and 326.54 is: 450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.35 : 740.21 = 326.54 : x
  2. Step 2: Convert to fraction form
    536.35/740.21 = 326.54/x
  3. Step 3: Cross multiply
    536.35x = 740.21 × 326.54
  4. Step 4: Simplify right side
    536.35x = 241,705.29
  5. Step 5: Solve for x
    x = 241,705.29/536.35
  6. Step 6: Final answer
    x = 450.65

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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.