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Finding the Fourth Proportional to 480.97, 663.04 and 340.66

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Solution

The fourth proportional to 480.97, 663.04 and 340.66 is: 469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.97 : 663.04 = 340.66 : x
  2. Step 2: Convert to fraction form
    480.97/663.04 = 340.66/x
  3. Step 3: Cross multiply
    480.97x = 663.04 × 340.66
  4. Step 4: Simplify right side
    480.97x = 225,866.19
  5. Step 5: Solve for x
    x = 225,866.19/480.97
  6. Step 6: Final answer
    x = 469.60

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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.