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Finding the Fourth Proportional to 440.36, 607.40 and 300.44

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Solution

The fourth proportional to 440.36, 607.40 and 300.44 is: 414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.36 : 607.40 = 300.44 : x
  2. Step 2: Convert to fraction form
    440.36/607.40 = 300.44/x
  3. Step 3: Cross multiply
    440.36x = 607.40 × 300.44
  4. Step 4: Simplify right side
    440.36x = 182,487.26
  5. Step 5: Solve for x
    x = 182,487.26/440.36
  6. Step 6: Final answer
    x = 414.40

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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.