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Finding the Fourth Proportional to 440.10, 659.21 and 295.65

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Solution

The fourth proportional to 440.10, 659.21 and 295.65 is: 442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.10 : 659.21 = 295.65 : x
  2. Step 2: Convert to fraction form
    440.10/659.21 = 295.65/x
  3. Step 3: Cross multiply
    440.10x = 659.21 × 295.65
  4. Step 4: Simplify right side
    440.10x = 194,893.96
  5. Step 5: Solve for x
    x = 194,893.96/440.10
  6. Step 6: Final answer
    x = 442.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.