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Finding the Fourth Proportional to 423.64, 635.16 and 180.04

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Solution

The fourth proportional to 423.64, 635.16 and 180.04 is: 269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.64 : 635.16 = 180.04 : x
  2. Step 2: Convert to fraction form
    423.64/635.16 = 180.04/x
  3. Step 3: Cross multiply
    423.64x = 635.16 × 180.04
  4. Step 4: Simplify right side
    423.64x = 114,354.21
  5. Step 5: Solve for x
    x = 114,354.21/423.64
  6. Step 6: Final answer
    x = 269.93

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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.