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Finding the Fourth Proportional to 536.65, 740.54 and 300.58

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Solution

The fourth proportional to 536.65, 740.54 and 300.58 is: 414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.65 : 740.54 = 300.58 : x
  2. Step 2: Convert to fraction form
    536.65/740.54 = 300.58/x
  3. Step 3: Cross multiply
    536.65x = 740.54 × 300.58
  4. Step 4: Simplify right side
    536.65x = 222,590.41
  5. Step 5: Solve for x
    x = 222,590.41/536.65
  6. Step 6: Final answer
    x = 414.78

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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.