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Finding the Fourth Proportional to 637.10, 954.97 and 271.70

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Solution

The fourth proportional to 637.10, 954.97 and 271.70 is: 407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.10 : 954.97 = 271.70 : x
  2. Step 2: Convert to fraction form
    637.10/954.97 = 271.70/x
  3. Step 3: Cross multiply
    637.10x = 954.97 × 271.70
  4. Step 4: Simplify right side
    637.10x = 259,465.35
  5. Step 5: Solve for x
    x = 259,465.35/637.10
  6. Step 6: Final answer
    x = 407.26

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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.