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Finding the Fourth Proportional to 637.53, 956.79 and 272.58

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Solution

The fourth proportional to 637.53, 956.79 and 272.58 is: 409.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.53 : 956.79 = 272.58 : x
  2. Step 2: Convert to fraction form
    637.53/956.79 = 272.58/x
  3. Step 3: Cross multiply
    637.53x = 956.79 × 272.58
  4. Step 4: Simplify right side
    637.53x = 260,801.82
  5. Step 5: Solve for x
    x = 260,801.82/637.53
  6. Step 6: Final answer
    x = 409.08

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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.