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Finding the Fourth Proportional to 536.70, 740.66 and 300.66

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Solution

The fourth proportional to 536.70, 740.66 and 300.66 is: 414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.70 : 740.66 = 300.66 : x
  2. Step 2: Convert to fraction form
    536.70/740.66 = 300.66/x
  3. Step 3: Cross multiply
    536.70x = 740.66 × 300.66
  4. Step 4: Simplify right side
    536.70x = 222,685.33
  5. Step 5: Solve for x
    x = 222,685.33/536.70
  6. Step 6: Final answer
    x = 414.92

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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.