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Finding the Fourth Proportional to 468.14, 701.78 and 436.54

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Solution

The fourth proportional to 468.14, 701.78 and 436.54 is: 654.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.14 : 701.78 = 436.54 : x
  2. Step 2: Convert to fraction form
    468.14/701.78 = 436.54/x
  3. Step 3: Cross multiply
    468.14x = 701.78 × 436.54
  4. Step 4: Simplify right side
    468.14x = 306,355.04
  5. Step 5: Solve for x
    x = 306,355.04/468.14
  6. Step 6: Final answer
    x = 654.41

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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.