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Finding the Fourth Proportional to 451.37, 675.93 and 288.56

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Solution

The fourth proportional to 451.37, 675.93 and 288.56 is: 432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.37 : 675.93 = 288.56 : x
  2. Step 2: Convert to fraction form
    451.37/675.93 = 288.56/x
  3. Step 3: Cross multiply
    451.37x = 675.93 × 288.56
  4. Step 4: Simplify right side
    451.37x = 195,046.36
  5. Step 5: Solve for x
    x = 195,046.36/451.37
  6. Step 6: Final answer
    x = 432.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.