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Finding the Fourth Proportional to 440.10, 607.50 and 300.42

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Solution

The fourth proportional to 440.10, 607.50 and 300.42 is: 414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.10 : 607.50 = 300.42 : x
  2. Step 2: Convert to fraction form
    440.10/607.50 = 300.42/x
  3. Step 3: Cross multiply
    440.10x = 607.50 × 300.42
  4. Step 4: Simplify right side
    440.10x = 182,505.15
  5. Step 5: Solve for x
    x = 182,505.15/440.10
  6. Step 6: Final answer
    x = 414.69

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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.