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Finding the Fourth Proportional to 536.85, 739.35 and 488.25

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Solution

The fourth proportional to 536.85, 739.35 and 488.25 is: 672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.85 : 739.35 = 488.25 : x
  2. Step 2: Convert to fraction form
    536.85/739.35 = 488.25/x
  3. Step 3: Cross multiply
    536.85x = 739.35 × 488.25
  4. Step 4: Simplify right side
    536.85x = 360,987.64
  5. Step 5: Solve for x
    x = 360,987.64/536.85
  6. Step 6: Final answer
    x = 672.42

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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.