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Finding the Fourth Proportional to 617, 925.71 and 251.72

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Solution

The fourth proportional to 617, 925.71 and 251.72 is: 377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    617 : 925.71 = 251.72 : x
  2. Step 2: Convert to fraction form
    617/925.71 = 251.72/x
  3. Step 3: Cross multiply
    617x = 925.71 × 251.72
  4. Step 4: Simplify right side
    617x = 233,019.72
  5. Step 5: Solve for x
    x = 233,019.72/617
  6. Step 6: Final answer
    x = 377.67

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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.