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Finding the Fourth Proportional to 480.45, 663.05 and 270.62

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Solution

The fourth proportional to 480.45, 663.05 and 270.62 is: 373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.45 : 663.05 = 270.62 : x
  2. Step 2: Convert to fraction form
    480.45/663.05 = 270.62/x
  3. Step 3: Cross multiply
    480.45x = 663.05 × 270.62
  4. Step 4: Simplify right side
    480.45x = 179,429.92
  5. Step 5: Solve for x
    x = 179,429.92/480.45
  6. Step 6: Final answer
    x = 373.46

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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.