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Finding the Fourth Proportional to 468.35, 646.27 and 271.82

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Solution

The fourth proportional to 468.35, 646.27 and 271.82 is: 375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.35 : 646.27 = 271.82 : x
  2. Step 2: Convert to fraction form
    468.35/646.27 = 271.82/x
  3. Step 3: Cross multiply
    468.35x = 646.27 × 271.82
  4. Step 4: Simplify right side
    468.35x = 175,667.62
  5. Step 5: Solve for x
    x = 175,667.62/468.35
  6. Step 6: Final answer
    x = 375.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.