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Finding the Fourth Proportional to 468.08, 645.74 and 271.54

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Solution

The fourth proportional to 468.08, 645.74 and 271.54 is: 374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.08 : 645.74 = 271.54 : x
  2. Step 2: Convert to fraction form
    468.08/645.74 = 271.54/x
  3. Step 3: Cross multiply
    468.08x = 645.74 × 271.54
  4. Step 4: Simplify right side
    468.08x = 175,344.24
  5. Step 5: Solve for x
    x = 175,344.24/468.08
  6. Step 6: Final answer
    x = 374.60

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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.