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Finding the Fourth Proportional to 636.37, 953.70 and 271.06

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Solution

The fourth proportional to 636.37, 953.70 and 271.06 is: 406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.37 : 953.70 = 271.06 : x
  2. Step 2: Convert to fraction form
    636.37/953.70 = 271.06/x
  3. Step 3: Cross multiply
    636.37x = 953.70 × 271.06
  4. Step 4: Simplify right side
    636.37x = 258,509.92
  5. Step 5: Solve for x
    x = 258,509.92/636.37
  6. Step 6: Final answer
    x = 406.23

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