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Finding the Fourth Proportional to 468.80, 645.60 and 337.60

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Solution

The fourth proportional to 468.80, 645.60 and 337.60 is: 464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.80 : 645.60 = 337.60 : x
  2. Step 2: Convert to fraction form
    468.80/645.60 = 337.60/x
  3. Step 3: Cross multiply
    468.80x = 645.60 × 337.60
  4. Step 4: Simplify right side
    468.80x = 217,954.56
  5. Step 5: Solve for x
    x = 217,954.56/468.80
  6. Step 6: Final answer
    x = 464.92

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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.