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Finding the Fourth Proportional to 440.73, 608.37 and 300.99

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Solution

The fourth proportional to 440.73, 608.37 and 300.99 is: 415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.73 : 608.37 = 300.99 : x
  2. Step 2: Convert to fraction form
    440.73/608.37 = 300.99/x
  3. Step 3: Cross multiply
    440.73x = 608.37 × 300.99
  4. Step 4: Simplify right side
    440.73x = 183,113.29
  5. Step 5: Solve for x
    x = 183,113.29/440.73
  6. Step 6: Final answer
    x = 415.48

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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.